PDA UI refactor and cartridges (#11335)

* Work on cartridges

* Work on PDA UI

* Work on PDA UIs program list

* Work on PDA UI borders

* Add DeviceNetworkingComponent to the pda base prototype

* Fix submodule version

* Fix cartridge loader ui key

* Fix pda menu xaml

* Implement relaying ui messages

* Finish implementing the notekeeper cartridge

* Fix submodule version

* Fix errors from merging master

* Fix test failing

* Implement setting preinstalled programs

* Add some documentation to CartridgeLoaderSystem

* Add more doc comments

* Add localization to program names

* Implement review suggestions

* Fix background programs receiving events twice when active

Content.Client/CartridgeLoader/CartridgeLoaderBoundUserInterface.cs

@@ -0,0 +1,136 @@
+using Content.Shared.CartridgeLoader;
+using Robust.Client.GameObjects;
+using Robust.Client.UserInterface;
+
+namespace Content.Client.CartridgeLoader;
+
+
+public abstract class CartridgeLoaderBoundUserInterface : BoundUserInterface
+{
+    [Dependency] private readonly IEntityManager? _entityManager = default!;
+
+    private EntityUid? _activeProgram;
+    private CartridgeUI? _activeCartridgeUI;
+    private Control? _activeUiFragment;
+
+    protected CartridgeLoaderBoundUserInterface(ClientUserInterfaceComponent owner, Enum uiKey) : base(owner, uiKey)
+    {
+        IoCManager.InjectDependencies(this);
+    }
+
+    protected override void UpdateState(BoundUserInterfaceState state)
+    {
+        base.UpdateState(state);
+
+        if (state is not CartridgeLoaderUiState loaderUiState)
+        {
+            _activeCartridgeUI?.UpdateState(state);
+            return;
+        }
+
+        var programs = GetCartridgeComponents(loaderUiState.Programs);
+        UpdateAvailablePrograms(programs);
+
+        _activeProgram = loaderUiState.ActiveUI;
+
+        var ui = RetrieveCartridgeUI(loaderUiState.ActiveUI);
+        var comp = RetrieveCartridgeComponent(loaderUiState.ActiveUI);
+        var control = ui?.GetUIFragmentRoot();
+
+        //Prevent the same UI fragment from getting disposed and attached multiple times
+        if (_activeUiFragment?.GetType() == control?.GetType())
+            return;
+
+        if (_activeUiFragment is not null)
+            DetachCartridgeUI(_activeUiFragment);
+
+        if (control is not null && _activeProgram.HasValue)
+        {
+            AttachCartridgeUI(control, Loc.GetString(comp?.ProgramName ?? "default-program-name"));
+            SendCartridgeUiReadyEvent(_activeProgram.Value);
+        }
+
+        _activeCartridgeUI = ui;
+        _activeUiFragment?.Dispose();
+        _activeUiFragment = control;
+    }
+
+    protected void ActivateCartridge(EntityUid cartridgeUid)
+    {
+        var message = new CartridgeLoaderUiMessage(cartridgeUid, CartridgeUiMessageAction.Activate);
+        SendMessage(message);
+    }
+
+    protected void DeactivateActiveCartridge()
+    {
+        if (!_activeProgram.HasValue)
+            return;
+
+        var message = new CartridgeLoaderUiMessage(_activeProgram.Value, CartridgeUiMessageAction.Deactivate);
+        SendMessage(message);
+    }
+
+    protected void InstallCartridge(EntityUid cartridgeUid)
+    {
+        var message = new CartridgeLoaderUiMessage(cartridgeUid, CartridgeUiMessageAction.Install);
+        SendMessage(message);
+    }
+
+    protected void UninstallCartridge(EntityUid cartridgeUid)
+    {
+        var message = new CartridgeLoaderUiMessage(cartridgeUid, CartridgeUiMessageAction.Uninstall);
+        SendMessage(message);
+    }
+
+    private List<(EntityUid, CartridgeComponent)> GetCartridgeComponents(List<EntityUid> programs)
+    {
+        var components = new List<(EntityUid, CartridgeComponent)>();
+
+        foreach (var program in programs)
+        {
+            var component = RetrieveCartridgeComponent(program);
+            if (component is not null)
+                components.Add((program, component));
+        }
+
+        return components;
+    }
+
+    /// <summary>
+    /// The implementing ui needs to add the passed ui fragment as a child to itself
+    /// </summary>
+    protected abstract void AttachCartridgeUI(Control cartridgeUIFragment, string? title);
+
+    /// <summary>
+    /// The implementing ui needs to remove the passed ui from itself
+    /// </summary>
+    protected abstract void DetachCartridgeUI(Control cartridgeUIFragment);
+
+    protected abstract void UpdateAvailablePrograms(List<(EntityUid, CartridgeComponent)> programs);
+
+    protected override void Dispose(bool disposing)
+    {
+        base.Dispose(disposing);
+
+        if (disposing)
+            _activeUiFragment?.Dispose();
+    }
+
+    protected CartridgeComponent? RetrieveCartridgeComponent(EntityUid? cartridgeUid)
+    {
+        return _entityManager?.GetComponentOrNull<CartridgeComponent>(cartridgeUid);
+    }
+
+    private void SendCartridgeUiReadyEvent(EntityUid cartridgeUid)
+    {
+        var message = new CartridgeLoaderUiMessage(cartridgeUid, CartridgeUiMessageAction.UIReady);
+        SendMessage(message);
+    }
+
+    private CartridgeUI? RetrieveCartridgeUI(EntityUid? cartridgeUid)
+    {
+        var component = _entityManager?.GetComponentOrNull<CartridgeUiComponent>(cartridgeUid);
+        component?.Ui?.Setup(this);
+        return component?.Ui;
+    }
+}

Content.Client/CartridgeLoader/CartridgeLoaderSystem.cs

@@ -0,0 +1,15 @@
+using Content.Shared.CartridgeLoader;
+
+namespace Content.Client.CartridgeLoader;
+
+public sealed class CartridgeLoaderSystem : SharedCartridgeLoaderSystem
+{
+    //Empty client system for component replication
+}
+
+[RegisterComponent]
+[ComponentReference(typeof(SharedCartridgeLoaderComponent))]
+public sealed class CartridgeLoaderComponent : SharedCartridgeLoaderComponent
+{
+
+}

Content.Client/CartridgeLoader/CartridgeUI.cs

@@ -0,0 +1,25 @@
+using Robust.Client.GameObjects;
+using Robust.Client.UserInterface;
+
+namespace Content.Client.CartridgeLoader;
+
+/// <summary>
+/// Cartridge ui fragments need to inherit this class. The subclass is then used in yaml to tell the cartridge loader ui to use it as the cartridges ui fragment.
+/// </summary>
+/// <example>
+/// This is an example from the yaml definition from the notekeeper ui
+/// <code>
+/// - type: CartridgeUi
+///     ui: !type:NotekeeperUi
+/// </code>
+/// </example>
+[ImplicitDataDefinitionForInheritors]
+public abstract class CartridgeUI
+{
+    public abstract Control GetUIFragmentRoot();
+
+    public abstract void Setup(BoundUserInterface userInterface);
+
+    public abstract void UpdateState(BoundUserInterfaceState state);
+
+}

Content.Client/CartridgeLoader/CartridgeUISerializer.cs

@@ -0,0 +1,44 @@
+using Robust.Shared.Serialization.Manager;
+using Robust.Shared.Serialization.Markdown;
+using Robust.Shared.Serialization.Markdown.Validation;
+using Robust.Shared.Serialization.Markdown.Value;
+using Robust.Shared.Serialization.TypeSerializers.Interfaces;
+
+namespace Content.Client.CartridgeLoader;
+
+/// <summary>
+/// Boilerplate serializer for defining the ui fragment used for a cartridge in yaml
+/// </summary>
+/// <example>
+/// This is an example from the yaml definition from the notekeeper ui
+/// <code>
+/// - type: CartridgeUi
+///     ui: !type:NotekeeperUi
+/// </code>
+/// </example>
+public sealed class CartridgeUISerializer : ITypeSerializer<CartridgeUI, ValueDataNode>
+{
+    public ValidationNode Validate(ISerializationManager serializationManager, ValueDataNode node,
+        IDependencyCollection dependencies, ISerializationContext? context = null)
+    {
+        return serializationManager.ValidateNode<CartridgeUI>(node, context);
+    }
+
+    public CartridgeUI Read(ISerializationManager serializationManager, ValueDataNode node, IDependencyCollection dependencies,
+        bool skipHook, ISerializationContext? context = null, CartridgeUI? value = default)
+    {
+        return serializationManager.Read(node, context, skipHook, value);
+    }
+
+    public CartridgeUI Copy(ISerializationManager serializationManager, CartridgeUI source, CartridgeUI target, bool skipHook,
+        ISerializationContext? context = null)
+    {
+        return serializationManager.Copy(source, context, skipHook);
+    }
+
+    public DataNode Write(ISerializationManager serializationManager, CartridgeUI value, IDependencyCollection dependencies,
+        bool alwaysWrite = false, ISerializationContext? context = null)
+    {
+        return serializationManager.WriteValue(value, alwaysWrite, context);
+    }
+}

Content.Client/CartridgeLoader/CartridgeUiComponent.cs

@@ -0,0 +1,14 @@
+
+namespace Content.Client.CartridgeLoader;
+
+/// <summary>
+/// The component used for defining which ui fragment to use for a cartridge
+/// </summary>
+/// <seealso cref="CartridgeUI"/>
+/// <seealso cref="CartridgeUISerializer"/>
+[RegisterComponent]
+public sealed class CartridgeUiComponent : Component
+{
+    [DataField("ui", true, customTypeSerializer: typeof(CartridgeUISerializer))]
+    public CartridgeUI? Ui = default;
+}

Content.Client/CartridgeLoader/Cartridges/NotekeeperUi.cs

@@ -0,0 +1,39 @@
+using Content.Shared.CartridgeLoader;
+using Content.Shared.CartridgeLoader.Cartridges;
+using Robust.Client.GameObjects;
+using Robust.Client.UserInterface;
+
+namespace Content.Client.CartridgeLoader.Cartridges;
+
+public sealed class NotekeeperUi : CartridgeUI
+{
+    private NotekeeperUiFragment? _fragment;
+
+
+    public override Control GetUIFragmentRoot()
+    {
+        return _fragment!;
+    }
+
+    public override void Setup(BoundUserInterface userInterface)
+    {
+        _fragment = new NotekeeperUiFragment();
+        _fragment.OnNoteRemoved += note => SendNotekeeperMessage(NotekeeperUiAction.Remove, note, userInterface);
+        _fragment.OnNoteAdded += note => SendNotekeeperMessage(NotekeeperUiAction.Add, note, userInterface);
+    }
+
+    public override void UpdateState(BoundUserInterfaceState state)
+    {
+        if (state is not NotekeeperUiState notekeepeerState)
+            return;
+
+        _fragment?.UpdateState(notekeepeerState.Notes);
+    }
+
+    private void SendNotekeeperMessage(NotekeeperUiAction action, string note, BoundUserInterface userInterface)
+    {
+        var notekeeperMessage = new NotekeeperUiMessageEvent(action, note);
+        var message = new CartridgeUiMessage(notekeeperMessage);
+        userInterface.SendMessage(message);
+    }
+}

Content.Client/CartridgeLoader/Cartridges/NotekeeperUiFragment.xaml

@@ -0,0 +1,10 @@
+<cartridges:NotekeeperUiFragment xmlns:cartridges="clr-namespace:Content.Client.CartridgeLoader.Cartridges"
+                                 xmlns="https://spacestation14.io" Margin="1 0 2 0">
+    <PanelContainer StyleClasses="BackgroundDark"></PanelContainer>
+    <BoxContainer Orientation="Vertical" HorizontalExpand="True" VerticalExpand="True">
+        <ScrollContainer HorizontalExpand="True" VerticalExpand="True" HScrollEnabled="True">
+            <BoxContainer Orientation="Vertical" Name="MessageContainer" HorizontalExpand="True" VerticalExpand="True"/>
+        </ScrollContainer>
+        <LineEdit Name="Input" HorizontalExpand="True" SetHeight="32"/>
+    </BoxContainer>
+</cartridges:NotekeeperUiFragment>

Content.Client/CartridgeLoader/Cartridges/NotekeeperUiFragment.xaml.cs

@@ -0,0 +1,62 @@
+using Robust.Client.AutoGenerated;
+using Robust.Client.UserInterface.Controls;
+using Robust.Client.UserInterface.XAML;
+
+namespace Content.Client.CartridgeLoader.Cartridges;
+
+[GenerateTypedNameReferences]
+public sealed partial class NotekeeperUiFragment : BoxContainer
+{
+
+    public event Action<string>? OnNoteAdded;
+    public event Action<string>? OnNoteRemoved;
+
+    public NotekeeperUiFragment()
+    {
+        RobustXamlLoader.Load(this);
+        Orientation = LayoutOrientation.Vertical;
+        HorizontalExpand = true;
+        VerticalExpand = true;
+
+        Input.OnTextEntered += _ =>
+        {
+            AddNote(Input.Text);
+            OnNoteAdded?.Invoke(Input.Text);
+            Input.Clear();
+        };
+
+        UpdateState(new List<string>());
+    }
+
+    public void UpdateState(List<string> notes)
+    {
+        MessageContainer.RemoveAllChildren();
+
+        foreach (var note in notes)
+        {
+           AddNote(note);
+        }
+    }
+
+    private void AddNote(string note)
+    {
+        var row = new BoxContainer();
+        row.HorizontalExpand = true;
+        row.Orientation = LayoutOrientation.Horizontal;
+        row.Margin = new Thickness(4);
+
+        var label = new Label();
+        label.Text = note;
+        label.HorizontalExpand = true;
+        label.ClipText = true;
+
+        var removeButton = new TextureButton();
+        removeButton.AddStyleClass("windowCloseButton");
+        removeButton.OnPressed += _ => OnNoteRemoved?.Invoke(label.Text);
+
+        row.AddChild(label);
+        row.AddChild(removeButton);
+
+        MessageContainer.AddChild(row);
+    }
+}

Content.Client/PDA/PDABorderColorComponent.cs

@@ -0,0 +1,19 @@
+namespace Content.Client.PDA;
+
+/// <summary>
+/// Used for specifying the pda windows border colors
+/// </summary>
+[RegisterComponent]
+public sealed class PDABorderColorComponent : Component
+{
+    [DataField("borderColor", required: true)]
+    public string? BorderColor;
+
+
+    [DataField("accentHColor")]
+    public string? AccentHColor;
+
+
+    [DataField("accentVColor")]
+    public string? AccentVColor;
+}

Content.Client/PDA/PDABoundUserInterface.cs

@@ -1,17 +1,20 @@
-using Content.Client.Message;
+using Content.Client.CartridgeLoader;
+using Content.Shared.CartridgeLoader;
 using Content.Shared.CCVar;
 using Content.Shared.Containers.ItemSlots;
 using Content.Shared.CrewManifest;
 using Content.Shared.PDA;
 using JetBrains.Annotations;
 using Robust.Client.GameObjects;
+using Robust.Client.UserInterface;
 using Robust.Shared.Configuration;
 
 namespace Content.Client.PDA
 {
     [UsedImplicitly]
-    public sealed class PDABoundUserInterface : BoundUserInterface
+    public sealed class PDABoundUserInterface : CartridgeLoaderBoundUserInterface
     {
+        [Dependency] private readonly IEntityManager? _entityManager = default!;
         [Dependency] private readonly IConfigurationManager _configManager = default!;
 
         private PDAMenu? _menu;
@@ -67,54 +70,52 @@ namespace Content.Client.PDA
                 SendMessage(new PDAShowRingtoneMessage());
             };
 
+            _menu.OnProgramItemPressed += ActivateCartridge;
+            _menu.OnInstallButtonPressed += InstallCartridge;
+            _menu.OnUninstallButtonPressed += UninstallCartridge;
+            _menu.ProgramCloseButton.OnPressed += _ => DeactivateActiveCartridge();
+
+            var borderColorComponent = GetBorderColorComponent();
+            if (borderColorComponent == null)
+                return;
+
+            _menu.BorderColor = borderColorComponent.BorderColor;
+            _menu.AccentHColor = borderColorComponent.AccentHColor;
+            _menu.AccentVColor = borderColorComponent.AccentVColor;
         }
 
         protected override void UpdateState(BoundUserInterfaceState state)
         {
             base.UpdateState(state);
 
-            if (_menu == null)
+            if (state is not PDAUpdateState updateState)
-            {
                 return;
+
+            _menu?.UpdateState(updateState);
         }
 
-            switch (state)
+
+        protected override void AttachCartridgeUI(Control cartridgeUIFragment, string? title)
         {
-                case PDAUpdateState msg:
+            _menu?.ProgramView.AddChild(cartridgeUIFragment);
+            _menu?.ToProgramView(title ?? Loc.GetString("comp-pda-io-program-fallback-title"));
+        }
+
+        protected override void DetachCartridgeUI(Control cartridgeUIFragment)
         {
-                    _menu.FlashLightToggleButton.Pressed = msg.FlashlightEnabled;
+            if (_menu is null)
+                return;
 
-                    if (msg.PDAOwnerInfo.ActualOwnerName != null)
+            _menu.ToHomeScreen();
+            _menu.HideProgramHeader();
+            _menu.ProgramView.RemoveChild(cartridgeUIFragment);
+        }
+
+        protected override void UpdateAvailablePrograms(List<(EntityUid, CartridgeComponent)> programs)
         {
-                        _menu.PdaOwnerLabel.SetMarkup(Loc.GetString("comp-pda-ui-owner",
+            _menu?.UpdateAvailablePrograms(programs);
-                            ("ActualOwnerName", msg.PDAOwnerInfo.ActualOwnerName)));
         }
 
-
-                    if (msg.PDAOwnerInfo.IdOwner != null || msg.PDAOwnerInfo.JobTitle != null)
-                    {
-                        _menu.IdInfoLabel.SetMarkup(Loc.GetString("comp-pda-ui",
-                            ("Owner",msg.PDAOwnerInfo.IdOwner ?? Loc.GetString("comp-pda-ui-unknown")),
-                            ("JobTitle",msg.PDAOwnerInfo.JobTitle ?? Loc.GetString("comp-pda-ui-unassigned"))));
-                    }
-                    else
-                    {
-                        _menu.IdInfoLabel.SetMarkup(Loc.GetString("comp-pda-ui-blank"));
-                    }
-
-                    _menu.StationNameLabel.SetMarkup(Loc.GetString("comp-pda-ui-station", ("Station",msg.StationName ?? Loc.GetString("comp-pda-ui-unknown"))));
-
-                    _menu.EjectIdButton.Visible = msg.PDAOwnerInfo.IdOwner != null || msg.PDAOwnerInfo.JobTitle != null;
-                    _menu.EjectPenButton.Visible = msg.HasPen;
-                    _menu.ActivateUplinkButton.Visible = msg.HasUplink;
-                    _menu.ActivateMusicButton.Visible = msg.CanPlayMusic;
-
-                    break;
-                }
-            }
-        }
-
-
         protected override void Dispose(bool disposing)
         {
             base.Dispose(disposing);
@@ -123,5 +124,10 @@ namespace Content.Client.PDA
 
             _menu?.Dispose();
         }
+
+        private PDABorderColorComponent? GetBorderColorComponent()
+        {
+            return _entityManager?.GetComponentOrNull<PDABorderColorComponent>(Owner.Owner);
+        }
     }
 }

Content.Client/PDA/PDAMenu.xaml

@@ -1,12 +1,32 @@
-<DefaultWindow xmlns="https://spacestation14.io"
+<pda:PDAWindow  xmlns="https://spacestation14.io"
-            Title="{Loc 'comp-pda-ui-menu-title'}"
+                xmlns:pda="clr-namespace:Content.Client.PDA"
-            MinSize="576 256"
+                xmlns:controls="clr-namespace:Content.Client.UserInterface.Controls"
-            SetSize="576 256">
+                MinSize="576 450"
-    <TabContainer Name="MasterTabContainer">
+                SetSize="576 450">
+    <!-- This: (Margin="1 1 3 0") is necessary so the navigation bar doesn't sticks into the black content border. -->
+    <BoxContainer Name="NavigationBar" HorizontalExpand="True" MinHeight="32" Margin="1 1 3 0">
+        <pda:PDANavigationButton Name="HomeButton" SetWidth="32" CurrentTabBorderThickness="0 0 2 0" IsCurrent="True"/>
+        <pda:PDANavigationButton Name="ProgramListButton" Access="Public" MinWidth="100" LabelText="{Loc 'comp-pda-io-program-list-button'}"/>
+        <pda:PDANavigationButton Name="SettingsButton" MinWidth="100" LabelText="{Loc 'comp-pda-io-settings-button'}"/>
+
+        <pda:PDANavigationButton Name="ProgramTitle" Access="Public" BorderThickness="0 0 0 2" CurrentTabBorderThickness="2 0 0 2"
+                                 ActiveBgColor="#202023" Visible="False"/>
+
+        <pda:PDANavigationButton HorizontalExpand="True"/>
+
+        <pda:PDANavigationButton Name="ProgramCloseButton" Access="Public" IconScale="0.5 0.5" BorderThickness="0 0 2 2"
+                                 Visible="False" IsActive="False" SetWidth="32"/>
+
+        <pda:PDANavigationButton Name="FlashLightToggleButton" Access="Public" ToggleMode="True" ActiveFgColor="#EAEFBB" SetWidth="32"/>
+        <pda:PDANavigationButton Name="EjectPenButton" Access="Public" SetWidth="32"/>
+        <pda:PDANavigationButton Name="EjectIdButton" Access="Public" SetWidth="32"/>
+    </BoxContainer>
+    <BoxContainer Name="ViewContainer" HorizontalExpand="True" VerticalExpand="True" Access="Public">
         <BoxContainer Orientation="Vertical"
                       VerticalExpand="True"
                       HorizontalExpand="True"
-                      MinSize="50 50">
+                      MinSize="50 50"
+                      Margin="8">
             <RichTextLabel Name="PdaOwnerLabel" Access="Public" />
             <RichTextLabel Name="IdInfoLabel"
                            Access="Public"
@@ -16,37 +36,53 @@
                     <RichTextLabel Name="StationNameLabel"
                                    Access="Public"
                                    HorizontalExpand="True" />
-                    <Button Name="EjectIdButton"
-                            Access="Public"
-                            Text="{Loc 'comp-pda-ui-eject-id-button'}"
-                            HorizontalAlignment="Center"
-                            VerticalAlignment="Center" />
-                    <Button Name="EjectPenButton"
-                            Access="Public"
-                            Text="{Loc 'comp-pda-ui-eject-pen-button'}"
-                            HorizontalAlignment="Center"
-                            VerticalAlignment="Center" />
-                    <Button Name="AccessRingtoneButton"
-                            Access="Public"
-                            Text="{Loc 'comp-pda-ui-ringtone-button'}"
-                            HorizontalAlignment="Center"
-                            VerticalAlignment="Center" />
                 </BoxContainer>
             </PanelContainer>
-            <Button Name="FlashLightToggleButton"
+        </BoxContainer>
+        <ScrollContainer HorizontalExpand="True" VerticalExpand="True" HScrollEnabled="True">
+            <BoxContainer Orientation="Vertical"
+                          VerticalExpand="True"
+                          HorizontalExpand="True"
+                          MinSize="50 50"
+                          Name="ProgramList"
+                          Margin="4"/>
+        </ScrollContainer>
+        <ScrollContainer HorizontalExpand="True" VerticalExpand="True" HScrollEnabled="True">
+            <BoxContainer Orientation="Vertical"
+                          VerticalExpand="True"
+                          HorizontalExpand="True"
+                          MinSize="50 50"
+                          Name="Settings">
+                <pda:PDASettingsButton Name="AccessRingtoneButton"
                                        Access="Public"
-                    Text="{Loc 'comp-pda-ui-toggle-flashlight-button'}"
+                                       Text="{Loc 'comp-pda-ui-ringtone-button'}"
-                    ToggleMode="True" />
+                                       Description="{Loc 'comp-pda-ui-ringtone-button-description'}"/>
-            <Button Name="CrewManifestButton"
+                <pda:PDASettingsButton Name="CrewManifestButton"
                                        Access="Public"
                                        Text="{Loc 'crew-manifest-button-label'}"
+                                       Description="{Loc 'crew-manifest-button-description'}"
                                        Visible="False" />
-            <Button Name="ActivateUplinkButton"
+                <pda:PDASettingsButton Name="ActivateUplinkButton"
                                        Access="Public"
-                    Text="{Loc 'pda-bound-user-interface-uplink-tab-title'}" />
+                                       Text="{Loc 'pda-bound-user-interface-uplink-tab-title'}"
-            <Button Name="ActivateMusicButton"
+                                       Description="{Loc 'pda-bound-user-interface-uplink-tab-description'}"/>
+                <pda:PDASettingsButton Name="ActivateMusicButton"
                                        Access="Public"
-                    Text="{Loc 'pda-bound-user-interface-music-button'}" />
+                                       Text="{Loc 'pda-bound-user-interface-music-button'}"
+                                       Description="{Loc 'pda-bound-user-interface-music-button-description'}"/>
             </BoxContainer>
-    </TabContainer>
+        </ScrollContainer>
-</DefaultWindow>
+        <BoxContainer Orientation="Vertical"
+                      VerticalExpand="True"
+                      HorizontalExpand="True"
+                      Name="ProgramView"
+                      Access="Public">
+        </BoxContainer>
+    </BoxContainer>
+    <BoxContainer Name="ContentFooter" HorizontalExpand="True" SetHeight="28" Margin="1 0 2 1">
+        <controls:StripeBack HasBottomEdge="False" HasMargins="False" HorizontalExpand="True">
+            <Label Text="Robust#OS ™" VerticalAlignment="Center" Margin="6 0" StyleClasses="PDAContentFooterText"/>
+            <Label Name="AddressLabel" VerticalAlignment="Center" HorizontalAlignment="Right" Margin="6 0" StyleClasses="PDAContentFooterText"/>
+        </controls:StripeBack>
+    </BoxContainer>
+</pda:PDAWindow>

Content.Client/PDA/PDAMenu.xaml.cs

@@ -1,18 +1,252 @@
-using Robust.Client.AutoGenerated;
+using Content.Client.Message;
-using Robust.Client.UserInterface.CustomControls;
+using Content.Shared.CartridgeLoader;
+using Content.Shared.PDA;
+using Robust.Client.AutoGenerated;
+using Robust.Client.UserInterface;
+using Robust.Client.UserInterface.Controls;
 using Robust.Client.UserInterface.XAML;
-using Robust.Shared.Localization;
+using Robust.Shared.Utility;
 
 namespace Content.Client.PDA
 {
     [GenerateTypedNameReferences]
-    public sealed partial class PDAMenu : DefaultWindow
+    public sealed partial class PDAMenu : PDAWindow
     {
+        public const int HomeView = 0;
+        public const int ProgramListView = 1;
+        public const int SettingsView = 2;
+        public const int ProgramContentView = 3;
+
+        private int _currentView = 0;
+
+        public event Action<EntityUid>? OnProgramItemPressed;
+        public event Action<EntityUid>? OnUninstallButtonPressed;
+        public event Action<EntityUid>? OnInstallButtonPressed;
         public PDAMenu()
         {
             RobustXamlLoader.Load(this);
 
-            MasterTabContainer.SetTabTitle(0, Loc.GetString("pda-bound-user-interface-main-menu-tab-title"));
+            ViewContainer.OnChildAdded += control => control.Visible = false;
+
+            HomeButton.IconTexture = new SpriteSpecifier.Texture(new ResourcePath("/Textures/Interface/home.png"));
+            FlashLightToggleButton.IconTexture = new SpriteSpecifier.Texture(new ResourcePath("/Textures/Interface/light.png"));
+            EjectPenButton.IconTexture = new SpriteSpecifier.Texture(new ResourcePath("/Textures/Interface/pencil.png"));
+            EjectIdButton.IconTexture = new SpriteSpecifier.Texture(new ResourcePath("/Textures/Interface/eject.png"));
+            ProgramCloseButton.IconTexture = new SpriteSpecifier.Texture(new ResourcePath("/Textures/Interface/Nano/cross.svg.png"));
+
+
+            HomeButton.OnPressed += _ => ToHomeScreen();
+
+            ProgramListButton.OnPressed += _ =>
+            {
+                HomeButton.IsCurrent = false;
+                ProgramListButton.IsCurrent = true;
+                SettingsButton.IsCurrent = false;
+                ProgramTitle.IsCurrent = false;
+
+                ChangeView(ProgramListView);
+            };
+
+
+            SettingsButton.OnPressed += _ =>
+            {
+                HomeButton.IsCurrent = false;
+                ProgramListButton.IsCurrent = false;
+                SettingsButton.IsCurrent = true;
+                ProgramTitle.IsCurrent = false;
+
+                ChangeView(SettingsView);
+            };
+
+            ProgramTitle.OnPressed += _ =>
+            {
+                HomeButton.IsCurrent = false;
+                ProgramListButton.IsCurrent = false;
+                SettingsButton.IsCurrent = false;
+                ProgramTitle.IsCurrent = true;
+
+                ChangeView(ProgramContentView);
+            };
+
+            ProgramCloseButton.OnPressed += _ =>
+            {
+                HideProgramHeader();
+                ToHomeScreen();
+            };
+
+
+            HideAllViews();
+            ToHomeScreen();
+        }
+
+        public void UpdateState(PDAUpdateState state)
+        {
+            FlashLightToggleButton.IsActive = state.FlashlightEnabled;
+
+            if (state.PDAOwnerInfo.ActualOwnerName != null)
+            {
+                PdaOwnerLabel.SetMarkup(Loc.GetString("comp-pda-ui-owner",
+                    ("ActualOwnerName", state.PDAOwnerInfo.ActualOwnerName)));
+            }
+
+
+            if (state.PDAOwnerInfo.IdOwner != null || state.PDAOwnerInfo.JobTitle != null)
+            {
+                IdInfoLabel.SetMarkup(Loc.GetString("comp-pda-ui",
+                    ("Owner",state.PDAOwnerInfo.IdOwner ?? Loc.GetString("comp-pda-ui-unknown")),
+                    ("JobTitle",state.PDAOwnerInfo.JobTitle ?? Loc.GetString("comp-pda-ui-unassigned"))));
+            }
+            else
+            {
+                IdInfoLabel.SetMarkup(Loc.GetString("comp-pda-ui-blank"));
+            }
+
+            StationNameLabel.SetMarkup(Loc.GetString("comp-pda-ui-station", ("Station",state.StationName ?? Loc.GetString("comp-pda-ui-unknown"))));
+            AddressLabel.Text = state.Address?.ToUpper() ?? " - ";
+
+            EjectIdButton.IsActive = state.PDAOwnerInfo.IdOwner != null || state.PDAOwnerInfo.JobTitle != null;
+            EjectPenButton.IsActive = state.HasPen;
+            ActivateUplinkButton.Visible = state.HasUplink;
+            ActivateMusicButton.Visible = state.CanPlayMusic;
+        }
+
+        public void UpdateAvailablePrograms(List<(EntityUid, CartridgeComponent)> programs)
+        {
+            ProgramList.RemoveAllChildren();
+
+            if (programs.Count == 0)
+            {
+                ProgramList.AddChild(new Label()
+                {
+                    Text = Loc.GetString("comp-pda-io-no-programs-available"),
+                    HorizontalAlignment = HAlignment.Center,
+                    VerticalAlignment = VAlignment.Center,
+                    VerticalExpand = true
+                });
+
+                return;
+            }
+
+            var row = CreateProgramListRow();
+            var itemCount = 1;
+            ProgramList.AddChild(row);
+
+            foreach (var (uid, component) in programs)
+            {
+                //Create a new row every second program item starting from the first
+                if (itemCount % 2 != 0)
+                {
+                    row = CreateProgramListRow();
+                    ProgramList.AddChild(row);
+                }
+
+                var item = new PDAProgramItem();
+
+                if (component.Icon is not null)
+                    item.Icon.SetFromSpriteSpecifier(component.Icon);
+
+                item.OnPressed += _ => OnProgramItemPressed?.Invoke(uid);
+
+                switch (component.InstallationStatus)
+                {
+                    case InstallationStatus.Cartridge:
+                        item.InstallButton.Visible = true;
+                        item.InstallButton.Text = Loc.GetString("cartridge-bound-user-interface-install-button");
+                        item.InstallButton.OnPressed += _ => OnInstallButtonPressed?.Invoke(uid);
+                        break;
+                    case InstallationStatus.Installed:
+                        item.InstallButton.Visible = true;
+                        item.InstallButton.Text = Loc.GetString("cartridge-bound-user-interface-uninstall-button");
+                        item.InstallButton.OnPressed += _ => OnUninstallButtonPressed?.Invoke(uid);
+                        break;
+                }
+
+                item.ProgramName.Text = Loc.GetString(component.ProgramName);
+                item.SetHeight = 20;
+                row.AddChild(item);
+
+                itemCount++;
+            }
+
+            //Add a filler item to the last row when it only contains one item
+            if (itemCount % 2 == 0)
+                row.AddChild(new Control() { HorizontalExpand = true });
+        }
+
+        /// <summary>
+        /// Changes the current view to the home screen (view 0) and sets the tabs `IsCurrent` flag accordingly
+        /// </summary>
+        public void ToHomeScreen()
+        {
+            HomeButton.IsCurrent = true;
+            ProgramListButton.IsCurrent = false;
+            SettingsButton.IsCurrent = false;
+            ProgramTitle.IsCurrent = false;
+
+            ChangeView(HomeView);
+        }
+
+        /// <summary>
+        /// Hides the program title and close button.
+        /// </summary>
+        public void HideProgramHeader()
+        {
+            ProgramTitle.IsCurrent = false;
+            ProgramTitle.Visible = false;
+            ProgramCloseButton.Visible = false;
+            ProgramListButton.Visible = true;
+            SettingsButton.Visible = true;
+        }
+
+        /// <summary>
+        /// Changes the current view to the program content view (view 3), sets the program title and sets the tabs `IsCurrent` flag accordingly
+        /// </summary>
+        public void ToProgramView(string title)
+        {
+            HomeButton.IsCurrent = false;
+            ProgramListButton.IsCurrent = false;
+            SettingsButton.IsCurrent = false;
+            ProgramTitle.IsCurrent = false;
+            ProgramTitle.IsCurrent = true;
+            ProgramTitle.Visible = true;
+            ProgramCloseButton.Visible = true;
+            ProgramListButton.Visible = false;
+            SettingsButton.Visible = false;
+
+            ProgramTitle.LabelText = title;
+            ChangeView(ProgramContentView);
+        }
+
+
+        /// <summary>
+        /// Changes the current view to the given view number
+        /// </summary>
+        public void ChangeView(int view)
+        {
+            if (ViewContainer.ChildCount <= view)
+                return;
+
+            ViewContainer.GetChild(_currentView).Visible = false;
+            ViewContainer.GetChild(view).Visible = true;
+            _currentView = view;
+        }
+
+        private BoxContainer CreateProgramListRow()
+        {
+            return new BoxContainer()
+            {
+                Orientation = BoxContainer.LayoutOrientation.Horizontal,
+                HorizontalExpand = true
+            };
+        }
+
+        private void HideAllViews()
+        {
+            var views = ViewContainer.Children;
+            foreach (var view in views)
+            {
+                view.Visible = false;
+            }
         }
     }
 }

Content.Client/PDA/PDANavigationButton.xaml

@@ -0,0 +1,5 @@
+<pda:PDANavigationButton xmlns="https://spacestation14.io" xmlns:pda="clr-namespace:Content.Client.PDA">
+    <PanelContainer Name="Background"/>
+    <AnimatedTextureRect Margin="0 0 0 2" Visible="False" Name="Icon" HorizontalAlignment="Center" VerticalAlignment="Center"/>
+    <Label Visible="True" Name="Label" Margin="8 0 8 2" HorizontalAlignment="Center" VerticalAlignment="Center"/>
+</pda:PDANavigationButton>

Content.Client/PDA/PDANavigationButton.xaml.cs

@@ -0,0 +1,108 @@
+using Robust.Client.AutoGenerated;
+using Robust.Client.Graphics;
+using Robust.Client.UserInterface.Controls;
+using Robust.Client.UserInterface.XAML;
+using Robust.Shared.Utility;
+
+namespace Content.Client.PDA;
+
+[GenerateTypedNameReferences]
+public sealed partial class PDANavigationButton : ContainerButton
+{
+
+    private bool _isCurrent;
+    private bool _isActive = true;
+
+    private Thickness _borderThickness = new(0, 0, 0, 2);
+    private Thickness _currentTabBorderThickness = new(2, 0, 2, 0);
+
+    private readonly StyleBoxFlat _styleBox = new()
+    {
+        BackgroundColor = Color.FromHex("#202023"),
+        BorderColor = Color.FromHex("#5a5a5a"),
+        BorderThickness = new Thickness(0, 0, 0, 2)
+    };
+
+    public string InactiveBgColor { get; set; } = "#202023";
+    public string ActiveBgColor { get; set; } = "#25252a";
+    public string InactiveFgColor { get; set; } = "#5a5a5a";
+    public string ActiveFgColor { get; set; } = "#FFFFFF";
+
+    public SpriteSpecifier? IconTexture
+    {
+        set
+        {
+            Icon.Visible = value != null;
+            Label.Visible = value == null;
+
+            if (value is not null)
+                Icon.SetFromSpriteSpecifier(value);
+        }
+    }
+
+    public Vector2 IconScale
+    {
+        get => Icon.DisplayRect.TextureScale;
+        set => Icon.DisplayRect.TextureScale = value;
+    }
+
+    public string? LabelText
+    {
+        get => Label.Text;
+        set => Label.Text = value;
+    }
+
+    /// <summary>
+    /// Sets the border thickness when the tab is not the currently active one
+    /// </summary>
+    public Thickness BorderThickness
+    {
+        get => _borderThickness;
+        set
+        {
+            _borderThickness = value;
+            _styleBox.BorderThickness = _isCurrent ? _currentTabBorderThickness : value;
+        }
+    }
+
+    /// <summary>
+    /// Sets the border thickness when this tab is the currently active tab
+    /// </summary>
+    public Thickness CurrentTabBorderThickness
+    {
+        get => _currentTabBorderThickness;
+        set
+        {
+            _currentTabBorderThickness = value;
+            _styleBox.BorderThickness = _isCurrent ? value : _borderThickness;
+        }
+    }
+
+    public bool IsCurrent
+    {
+        get => _isCurrent;
+        set
+        {
+            _isCurrent = value;
+            _styleBox.BackgroundColor = Color.FromHex(value ? ActiveBgColor : InactiveBgColor);
+            _styleBox.BorderThickness = value ? CurrentTabBorderThickness : BorderThickness;
+        }
+    }
+
+    public bool IsActive
+    {
+        get => _isActive;
+        set
+        {
+            _isActive = value;
+            Icon.Modulate = Color.FromHex(value ? ActiveFgColor : InactiveFgColor);
+            Label.FontColorOverride = Color.FromHex(value ? ActiveFgColor : InactiveFgColor);
+        }
+    }
+
+    public PDANavigationButton()
+    {
+        RobustXamlLoader.Load(this);
+        Background.PanelOverride = _styleBox;
+    }
+}

Content.Client/PDA/PDAProgramItem.xaml

@@ -0,0 +1,17 @@
+<pda:PDAProgramItem HorizontalExpand="True" MinHeight="60" Margin="4"
+                    xmlns:pda="clr-namespace:Content.Client.PDA"
+                    xmlns="https://spacestation14.io">
+    <PanelContainer Name="Panel"/>
+    <BoxContainer Orientation="Horizontal" HorizontalExpand="True" VerticalExpand="True">
+        <BoxContainer Orientation="Vertical" VerticalExpand="True" MinWidth="60">
+            <AnimatedTextureRect HorizontalAlignment="Center" VerticalAlignment="Center" VerticalExpand="True" Name="Icon" Access="Public"/>
+        </BoxContainer>
+        <BoxContainer Orientation="Vertical" VerticalExpand="True" HorizontalExpand="True">
+            <Label Name="ProgramName" Access="Public" VerticalExpand="True"/>
+            <BoxContainer HorizontalExpand="True" SetHeight="28" Margin="0 0 4 4">
+                <BoxContainer HorizontalExpand="True"/>
+                <Button Name="InstallButton" Access="Public" Visible="False" SetWidth="90" HorizontalAlignment="Right" VerticalExpand="True"></Button>
+            </BoxContainer>
+        </BoxContainer>
+    </BoxContainer>
+</pda:PDAProgramItem>

Content.Client/PDA/PDAProgramItem.xaml.cs

@@ -0,0 +1,42 @@
+using Robust.Client.AutoGenerated;
+using Robust.Client.Graphics;
+using Robust.Client.UserInterface;
+using Robust.Client.UserInterface.Controls;
+using Robust.Client.UserInterface.XAML;
+using Robust.Shared.Input;
+
+namespace Content.Client.PDA;
+
+[GenerateTypedNameReferences]
+public sealed partial class PDAProgramItem : ContainerButton
+{
+    public const string StylePropertyBgColor = "backgroundColor";
+    public const string NormalBgColor = "#313138";
+    public const string HoverColor = "#3E6C45";
+
+    private readonly StyleBoxFlat _styleBox = new()
+    {
+        BackgroundColor = Color.FromHex("#25252a"),
+    };
+
+    public Color BackgroundColor
+    {
+        get => _styleBox.BackgroundColor;
+        set => _styleBox.BackgroundColor = value;
+    }
+
+    public PDAProgramItem()
+    {
+        RobustXamlLoader.Load(this);
+        Panel.PanelOverride = _styleBox;
+    }
+
+    protected override void Draw(DrawingHandleScreen handle)
+    {
+        base.Draw(handle);
+
+        if (TryGetStyleProperty<Color>(StylePropertyBgColor, out var bgColor))
+            BackgroundColor = bgColor;
+
+    }
+}

Content.Client/PDA/PDASettingsButton.xaml

@@ -0,0 +1,11 @@
+<pda:PDASettingsButton xmlns="https://spacestation14.io"
+                       xmlns:pda="clr-namespace:Content.Client.PDA"
+                       HorizontalExpand="True"
+                       MinHeight="48"
+                       Margin="5 4 6 0">
+<PanelContainer Name="Panel"/>
+<BoxContainer Orientation="Vertical" HorizontalExpand="True" VerticalExpand="True" Margin="8 4 0 4">
+    <Label Name="OptionName"/>
+    <Label Name="OptionDescription"/>
+</BoxContainer>
+</pda:PDASettingsButton>

Content.Client/PDA/PDASettingsButton.xaml.cs

@@ -0,0 +1,69 @@
+using Robust.Client.AutoGenerated;
+using Robust.Client.Graphics;
+using Robust.Client.UserInterface.Controls;
+using Robust.Client.UserInterface.XAML;
+
+namespace Content.Client.PDA;
+
+[GenerateTypedNameReferences]
+public sealed partial class PDASettingsButton : ContainerButton
+{
+    public const string StylePropertyFgColor = "foregroundColor";
+    public const string StylePropertyBgColor = "backgroundColor";
+    public const string NormalBgColor = "#313138";
+    public const string HoverColor = "#3E6C45";
+    public const string PressedColor = "#3E6C45";
+    public const string DisabledFgColor = "#5a5a5a";
+    public const string EnabledFgColor = "#FFFFFF";
+
+    private readonly StyleBoxFlat _styleBox = new()
+    {
+        BackgroundColor = Color.FromHex("#25252a")
+    };
+
+    public string? Text
+    {
+        get => OptionName.Text;
+        set => OptionName.Text = value;
+    }
+    public string? Description
+    {
+        get => OptionDescription.Text;
+        set => OptionDescription.Text = value;
+    }
+
+    public Color BackgroundColor
+    {
+        get => _styleBox.BackgroundColor;
+        set => _styleBox.BackgroundColor = value;
+    }
+
+    public Color? ForegroundColor
+    {
+        get => OptionName.FontColorOverride;
+
+            set
+        {
+            OptionName.FontColorOverride = value;
+            OptionDescription.FontColorOverride = value;
+        }
+    }
+
+    public PDASettingsButton()
+    {
+        RobustXamlLoader.Load(this);
+        Panel.PanelOverride = _styleBox;
+    }
+
+    protected override void Draw(DrawingHandleScreen handle)
+    {
+        base.Draw(handle);
+
+        if (TryGetStyleProperty<Color>(StylePropertyBgColor, out var bgColor))
+            BackgroundColor = bgColor;
+
+        if (TryGetStyleProperty<Color>(StylePropertyFgColor, out var fgColor))
+            ForegroundColor = fgColor;
+
+    }
+}

Content.Client/PDA/PDAWindow.xaml

@@ -0,0 +1,31 @@
+<pda:PDAWindow  xmlns="https://spacestation14.io"
+                xmlns:pda="clr-namespace:Content.Client.PDA"
+                MouseFilter="Stop">
+    <PanelContainer Name="Background" Access="Public" StyleClasses="PDABackgroundRect" />
+    <!-- The negative markin fixes a gap between the window edges and the decorative panel -->
+    <PanelContainer Name="AccentH" Margin="-1 170 -2 170" Access="Public" StyleClasses="PDABackground" />
+    <PanelContainer Name="AccentV" Margin="220 -1 220 -1" Access="Public" StyleClasses="PDABackground" />
+    <PanelContainer Name="Border" StyleClasses="PDABorderRect" />
+    <BoxContainer Orientation="Vertical" HorizontalExpand="True">
+        <!--Heading-->
+        <BoxContainer SetHeight="26" Margin="4 2 8 0" Orientation="Horizontal">
+            <Control HorizontalExpand="True"/>
+            <TextureButton Name="CloseButton" StyleClasses="windowCloseButton"
+                           VerticalAlignment="Center" Margin="0 4 4 0"/>
+        </BoxContainer>
+        <!--Content-->
+        <Control Margin="18 0" RectClipContent="True" VerticalExpand="true"
+                 HorizontalExpand="True">
+            <PanelContainer Name="ContentBorder" StyleClasses="PDABackground"/>
+            <Control Margin="3 3">
+                <PanelContainer Name="ContentBackground" StyleClasses="PDAContentBackground"/>
+                <BoxContainer Access="Public" Name="ContentsContainer" Orientation="Vertical" StyleClasses="PDAContent"/>
+
+            </Control>
+        </Control>
+        <!--Footer-->
+        <BoxContainer Orientation="Horizontal" SetHeight="28">
+            <Label Text="Personal Digital Assistant" StyleClasses="PDAWindowFooterText" Margin="32 0 0 6"/>
+        </BoxContainer>
+    </BoxContainer>
+</pda:PDAWindow>

Content.Client/PDA/PDAWindow.xaml.cs

@@ -0,0 +1,56 @@
+using Robust.Client.AutoGenerated;
+using Robust.Client.UserInterface.CustomControls;
+using Robust.Client.UserInterface.XAML;
+
+namespace Content.Client.PDA;
+
+[Virtual]
+[GenerateTypedNameReferences]
+public partial class PDAWindow : BaseWindow
+{
+
+    public string? BorderColor
+    {
+        get => Background.ActualModulateSelf.ToHex();
+
+        set => Background.ModulateSelfOverride = Color.FromHex(value, Color.White);
+    }
+
+    public string? AccentHColor
+    {
+        get => AccentH.ActualModulateSelf.ToHex();
+
+        set
+        {
+            AccentH.ModulateSelfOverride = Color. FromHex(value, Color.White);
+            AccentH.Visible = value != null;
+        }
+    }
+
+    public string? AccentVColor
+    {
+        get => AccentV.ActualModulateSelf.ToHex();
+
+        set
+        {
+            AccentV.ModulateSelfOverride = Color. FromHex(value, Color.White);
+            AccentV.Visible = value != null;
+        }
+    }
+
+    public PDAWindow()
+    {
+        RobustXamlLoader.Load(this);
+
+        CloseButton.OnPressed += _ => Close();
+        XamlChildren = ContentsContainer.Children;
+
+        AccentH.Visible = false;
+        AccentV.Visible = false;
+    }
+
+    protected override DragMode GetDragModeFor(Vector2 relativeMousePos)
+    {
+        return DragMode.Move;
+    }
+}

Content.Client/Stylesheets/StyleBase.cs

@@ -38,6 +38,7 @@ namespace Content.Client.Stylesheets
         protected StyleBoxTexture BaseButtonSquare { get; }
 
         protected StyleBoxTexture BaseAngleRect { get; }
+        protected StyleBoxTexture AngleBorderRect { get; }
 
         protected StyleBase(IResourceCache resCache)
         {
@@ -114,6 +115,12 @@ namespace Content.Client.Stylesheets
             };
             BaseAngleRect.SetPatchMargin(StyleBox.Margin.All, 10);
 
+            AngleBorderRect = new StyleBoxTexture
+            {
+                Texture = resCache.GetTexture("/Textures/Interface/Nano/geometric_panel_border.svg.96dpi.png"),
+            };
+            AngleBorderRect.SetPatchMargin(StyleBox.Margin.All, 10);
+
             var vScrollBarGrabberNormal = new StyleBoxFlat
             {
                 BackgroundColor = Color.Gray.WithAlpha(0.35f), ContentMarginLeftOverride = DefaultGrabberSize,

Content.Client/Stylesheets/StyleNano.cs

@@ -1,9 +1,8 @@
 using System.Linq;
-using Content.Client.Actions.UI;
 using Content.Client.ContextMenu.UI;
 using Content.Client.Examine;
+using Content.Client.PDA;
 using Content.Client.Resources;
-using Content.Client.Targeting;
 using Content.Client.Targeting.UI;
 using Content.Client.UserInterface.Controls;
 using Content.Client.Verbs.UI;
@@ -13,7 +12,6 @@ using Robust.Client.ResourceManagement;
 using Robust.Client.UserInterface;
 using Robust.Client.UserInterface.Controls;
 using Robust.Client.UserInterface.CustomControls;
-using Robust.Shared.Maths;
 using static Robust.Client.UserInterface.StylesheetHelpers;
 
 namespace Content.Client.Stylesheets
@@ -1395,6 +1393,60 @@ namespace Content.Client.Stylesheets
                 Element<Label>().Class("Disabled")
                     .Prop("font-color", DisabledFore),
 
+                //PDA - Backgrounds
+                Element<PanelContainer>().Class("PDAContentBackground")
+                    .Prop(PanelContainer.StylePropertyPanel, BaseButtonOpenBoth)
+                    .Prop(Control.StylePropertyModulateSelf, Color.FromHex("#25252a")),
+
+                Element<PanelContainer>().Class("PDABackground")
+                    .Prop(PanelContainer.StylePropertyPanel, BaseButtonOpenBoth)
+                    .Prop(Control.StylePropertyModulateSelf, Color.FromHex("#000000")),
+
+                Element<PanelContainer>().Class("PDABackgroundRect")
+                    .Prop(PanelContainer.StylePropertyPanel, BaseAngleRect)
+                    .Prop(Control.StylePropertyModulateSelf, Color.FromHex("#717059")),
+
+                Element<PanelContainer>().Class("PDABorderRect")
+                    .Prop(PanelContainer.StylePropertyPanel, AngleBorderRect),
+
+                Element<PanelContainer>().Class("BackgroundDark")
+                    .Prop(PanelContainer.StylePropertyPanel, new StyleBoxFlat(Color.FromHex("#25252A"))),
+
+                //PDA - Buttons
+                Element<PDASettingsButton>().Pseudo(ContainerButton.StylePseudoClassNormal)
+                    .Prop(PDASettingsButton.StylePropertyBgColor, Color.FromHex(PDASettingsButton.NormalBgColor))
+                    .Prop(PDASettingsButton.StylePropertyFgColor, Color.FromHex(PDASettingsButton.EnabledFgColor)),
+
+                Element<PDASettingsButton>().Pseudo(ContainerButton.StylePseudoClassHover)
+                    .Prop(PDASettingsButton.StylePropertyBgColor, Color.FromHex(PDASettingsButton.HoverColor))
+                    .Prop(PDASettingsButton.StylePropertyFgColor, Color.FromHex(PDASettingsButton.EnabledFgColor)),
+
+                Element<PDASettingsButton>().Pseudo(ContainerButton.StylePseudoClassPressed)
+                    .Prop(PDASettingsButton.StylePropertyBgColor, Color.FromHex(PDASettingsButton.PressedColor))
+                    .Prop(PDASettingsButton.StylePropertyFgColor, Color.FromHex(PDASettingsButton.EnabledFgColor)),
+
+                Element<PDASettingsButton>().Pseudo(ContainerButton.StylePseudoClassDisabled)
+                    .Prop(PDASettingsButton.StylePropertyBgColor, Color.FromHex(PDASettingsButton.NormalBgColor))
+                    .Prop(PDASettingsButton.StylePropertyFgColor, Color.FromHex(PDASettingsButton.DisabledFgColor)),
+
+                Element<PDAProgramItem>().Pseudo(ContainerButton.StylePseudoClassNormal)
+                    .Prop(PDAProgramItem.StylePropertyBgColor, Color.FromHex(PDAProgramItem.NormalBgColor)),
+
+                Element<PDAProgramItem>().Pseudo(ContainerButton.StylePseudoClassHover)
+                    .Prop(PDAProgramItem.StylePropertyBgColor, Color.FromHex(PDAProgramItem.HoverColor)),
+
+                Element<PDAProgramItem>().Pseudo(ContainerButton.StylePseudoClassPressed)
+                    .Prop(PDAProgramItem.StylePropertyBgColor, Color.FromHex(PDAProgramItem.HoverColor)),
+
+                //PDA - Text
+                Element<Label>().Class("PDAContentFooterText")
+                    .Prop(Label.StylePropertyFont, notoSans10)
+                    .Prop(Label.StylePropertyFontColor, Color.FromHex("#757575")),
+
+                Element<Label>().Class("PDAWindowFooterText")
+                    .Prop(Label.StylePropertyFont, notoSans10)
+                    .Prop(Label.StylePropertyFontColor, Color.FromHex("#333d3b")),
+
             }).ToList());
         }
     }

Content.Server/CartridgeLoader/CartridgeLoaderComponent.cs

@@ -0,0 +1,18 @@
+using Content.Shared.CartridgeLoader;
+using Robust.Shared.Serialization.TypeSerializers.Implementations;
+
+namespace Content.Server.CartridgeLoader;
+
+[RegisterComponent]
+[ComponentReference(typeof(SharedCartridgeLoaderComponent))]
+public sealed class CartridgeLoaderComponent : SharedCartridgeLoaderComponent
+{
+    /// <summary>
+    /// The maximum amount of programs that can be installed on the cartridge loader entity
+    /// </summary>
+    [DataField("diskSpace")]
+    public int DiskSpace = 5;
+
+    [DataField("uiKey", readOnly: true, required: true, customTypeSerializer: typeof(EnumSerializer))]
+    public Enum UiKey = default!;
+}

Content.Server/CartridgeLoader/CartridgeLoaderSystem.cs

@@ -0,0 +1,417 @@
+using Content.Server.DeviceNetwork.Systems;
+using Content.Shared.CartridgeLoader;
+using Content.Shared.Interaction;
+using Robust.Server.Containers;
+using Robust.Server.GameObjects;
+using Robust.Server.Player;
+using Robust.Shared.Containers;
+using Robust.Shared.Map;
+
+namespace Content.Server.CartridgeLoader;
+
+public sealed class CartridgeLoaderSystem : SharedCartridgeLoaderSystem
+{
+    [Dependency] private readonly ContainerSystem _containerSystem = default!;
+    [Dependency] private readonly UserInterfaceSystem _userInterfaceSystem = default!;
+
+    private const string ContainerName = "program-container";
+
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<CartridgeLoaderComponent, MapInitEvent>(OnMapInit);
+
+        SubscribeLocalEvent<CartridgeLoaderComponent, DeviceNetworkPacketEvent>(OnPacketReceived);
+        SubscribeLocalEvent<CartridgeLoaderComponent, AfterInteractEvent>(OnUsed);
+        SubscribeLocalEvent<CartridgeLoaderComponent, CartridgeLoaderUiMessage>(OnLoaderUiMessage);
+        SubscribeLocalEvent<CartridgeLoaderComponent, CartridgeUiMessage>(OnUiMessage);
+    }
+
+    /// <summary>
+    /// Updates the cartridge loaders ui state.
+    /// </summary>
+    /// <remarks>
+    /// Because the cartridge loader integrates with the ui of the entity using it, the entities ui state needs to inherit from <see cref="CartridgeLoaderUiState"/>
+    /// and use this method to update its state so the cartridge loaders state can be added to it.
+    /// </remarks>
+    /// <seealso cref="PDA.PDASystem.UpdatePDAUserInterface"/>
+    public void UpdateUiState(EntityUid loaderUid, CartridgeLoaderUiState state, IPlayerSession? session = default!, CartridgeLoaderComponent? loader  = default!)
+    {
+        if (!Resolve(loaderUid, ref loader))
+            return;
+
+        state.ActiveUI = loader.ActiveProgram;
+        state.Programs = GetAvailablePrograms(loaderUid, loader);
+
+        var ui = _userInterfaceSystem.GetUiOrNull(loader.Owner, loader.UiKey);
+        if (ui != null)
+            _userInterfaceSystem.SetUiState(ui, state, session);
+    }
+
+    /// <summary>
+    /// Updates the programs ui state
+    /// </summary>
+    /// <param name="loaderUid">The cartridge loaders entity uid</param>
+    /// <param name="state">The programs ui state. Programs should use their own ui state class inheriting from <see cref="BoundUserInterfaceState"/></param>
+    /// <param name="session">The players session</param>
+    /// <param name="loader">The cartridge loader component</param>
+    /// <remarks>
+    /// This method is called "UpdateCartridgeUiState" but cartridges and a programs are the same. A cartridge is just a program as a visible item.
+    /// </remarks>
+    /// <seealso cref="Cartridges.NotekeeperCartridgeSystem.UpdateUiState"/>
+    public void UpdateCartridgeUiState(EntityUid loaderUid, BoundUserInterfaceState state, IPlayerSession? session = default!, CartridgeLoaderComponent? loader = default!)
+    {
+        if (!Resolve(loaderUid, ref loader))
+            return;
+
+        var ui = _userInterfaceSystem.GetUiOrNull(loader.Owner, loader.UiKey);
+        if (ui != null)
+            _userInterfaceSystem.SetUiState(ui, state, session);
+    }
+
+    /// <summary>
+    /// Returns a list of all installed programs and the inserted cartridge if it isn't already installed
+    /// </summary>
+    /// <param name="uid">The cartridge loaders uid</param>
+    /// <param name="loader">The cartridge loader component</param>
+    /// <returns>A list of all the available program entity ids</returns>
+    public List<EntityUid> GetAvailablePrograms(EntityUid uid, CartridgeLoaderComponent? loader  = default!)
+    {
+        if (!Resolve(uid, ref loader))
+            return new List<EntityUid>();
+
+        //Don't count a cartridge that has already been installed as available to avoid confusion
+        if (loader.CartridgeSlot.HasItem && IsInstalled(Prototype(loader.CartridgeSlot.Item!.Value)?.ID, loader))
+            return loader.InstalledPrograms;
+
+        var available = new List<EntityUid>();
+        available.AddRange(loader.InstalledPrograms);
+
+        if (loader.CartridgeSlot.HasItem)
+            available.Add(loader.CartridgeSlot.Item!.Value);
+
+        return available;
+    }
+
+    /// <summary>
+    /// Installs a cartridge by spawning an invisible version of the cartridges prototype into the cartridge loaders program container program container
+    /// </summary>
+    /// <param name="loaderUid">The cartridge loader uid</param>
+    /// <param name="cartridgeUid">The uid of the cartridge to be installed</param>
+    /// <param name="loader">The cartridge loader component</param>
+    /// <returns>Whether installing the cartridge was successful</returns>
+    public bool InstallCartridge(EntityUid loaderUid, EntityUid cartridgeUid, CartridgeLoaderComponent? loader = default!)
+    {
+        if (!Resolve(loaderUid, ref loader) || loader.InstalledPrograms.Count >= loader.DiskSpace)
+            return false;
+
+        //This will eventually be replaced by serializing and deserializing the cartridge to copy it when something needs
+        //the data on the cartridge to carry over when installing
+        var prototypeId = Prototype(cartridgeUid)?.ID;
+        return prototypeId != null && InstallProgram(loaderUid, prototypeId, loader);
+    }
+
+    /// <summary>
+    /// Installs a program by its prototype
+    /// </summary>
+    /// <param name="loaderUid">The cartridge loader uid</param>
+    /// <param name="prototype">The prototype name</param>
+    /// <param name="loader">The cartridge loader component</param>
+    /// <returns>Whether installing the cartridge was successful</returns>
+    public bool InstallProgram(EntityUid loaderUid, string prototype, CartridgeLoaderComponent? loader  = default!)
+    {
+        if (!Resolve(loaderUid, ref loader) || loader.InstalledPrograms.Count >= loader.DiskSpace)
+            return false;
+
+        if (!_containerSystem.TryGetContainer(loaderUid, ContainerName, out var container))
+            return false;
+
+        //Prevent installing cartridges that have already been installed
+        if (IsInstalled(prototype, loader))
+            return false;
+
+        var installedProgram = Spawn(prototype, new EntityCoordinates(loaderUid, 0, 0));
+        container?.Insert(installedProgram);
+
+        UpdateCartridgeInstallationStatus(installedProgram, InstallationStatus.Installed);
+        loader.InstalledPrograms.Add(installedProgram);
+
+        RaiseLocalEvent(installedProgram, new CartridgeAddedEvent(loaderUid));
+        UpdateUserInterfaceState(loaderUid, loader);
+        return true;
+    }
+
+    /// <summary>
+    /// Uninstalls a program using its uid
+    /// </summary>
+    /// <param name="loaderUid">The cartridge loader uid</param>
+    /// <param name="programUid">The uid of the program to be uninstalled</param>
+    /// <param name="loader">The cartridge loader component</param>
+    /// <returns>Whether uninstalling the program was successful</returns>
+    public bool UninstallProgram(EntityUid loaderUid, EntityUid programUid, CartridgeLoaderComponent? loader  = default!)
+    {
+        if (!Resolve(loaderUid, ref loader) || !ContainsCartridge(programUid, loader, true))
+            return false;
+
+        if (loader.ActiveProgram == programUid)
+            loader.ActiveProgram = null;
+
+        loader.BackgroundPrograms.Remove(programUid);
+        loader.InstalledPrograms.Remove(programUid);
+        EntityManager.QueueDeleteEntity(programUid);
+        UpdateUserInterfaceState(loaderUid, loader);
+        return true;
+    }
+
+    /// <summary>
+    /// Activates a program or cartridge and displays its ui fragment. Deactivates any previously active program.
+    /// </summary>
+    public void ActivateProgram(EntityUid loaderUid, EntityUid programUid, CartridgeLoaderComponent? loader  = default!)
+    {
+        if (!Resolve(loaderUid, ref loader))
+            return;
+
+        if (!ContainsCartridge(programUid, loader))
+            return;
+
+        if (loader.ActiveProgram.HasValue)
+            DeactivateProgram(loaderUid, programUid, loader);
+
+        if (!loader.BackgroundPrograms.Contains(programUid))
+            RaiseLocalEvent(programUid, new CartridgeActivatedEvent(loaderUid));
+
+        loader.ActiveProgram = programUid;
+        UpdateUserInterfaceState(loaderUid, loader);
+    }
+
+    /// <summary>
+    /// Deactivates the currently active program or cartridge.
+    /// </summary>
+    public void DeactivateProgram(EntityUid loaderUid, EntityUid programUid, CartridgeLoaderComponent? loader  = default!)
+    {
+        if (!Resolve(loaderUid, ref loader))
+            return;
+
+        if (!ContainsCartridge(programUid, loader) || loader.ActiveProgram != programUid)
+            return;
+
+        if (!loader.BackgroundPrograms.Contains(programUid))
+            RaiseLocalEvent(programUid, new CartridgeDeactivatedEvent(programUid));
+
+        loader.ActiveProgram = default;
+        UpdateUserInterfaceState(loaderUid, loader);
+    }
+
+    /// <summary>
+    /// Registers the given program as a running in the background. Programs running in the background will receive certain events like device net packets but not ui messages
+    /// </summary>
+    /// <remarks>
+    /// Programs wanting to use this functionality will have to provide a way to register and unregister themselves as background programs through their ui fragment.
+    /// </remarks>
+    public void RegisterBackgroundProgram(EntityUid loaderUid, EntityUid cartridgeUid, CartridgeLoaderComponent? loader  = default!)
+    {
+        if (!Resolve(loaderUid, ref loader))
+            return;
+
+        if (!ContainsCartridge(cartridgeUid, loader))
+            return;
+
+        if (loader.ActiveProgram != cartridgeUid)
+            RaiseLocalEvent(cartridgeUid, new CartridgeActivatedEvent(loaderUid));
+
+        loader.BackgroundPrograms.Add(cartridgeUid);
+    }
+
+    /// <summary>
+    /// Unregisters the given program as running in the background
+    /// </summary>
+    public void UnregisterBackgroundProgram(EntityUid loaderUid, EntityUid cartridgeUid, CartridgeLoaderComponent? loader  = default!)
+    {
+        if (!Resolve(loaderUid, ref loader))
+            return;
+
+        if (!ContainsCartridge(cartridgeUid, loader))
+            return;
+
+        if (loader.ActiveProgram != cartridgeUid)
+            RaiseLocalEvent(cartridgeUid, new CartridgeDeactivatedEvent(loaderUid));
+
+        loader.BackgroundPrograms.Remove(cartridgeUid);
+    }
+
+    protected override void OnItemInserted(EntityUid uid, SharedCartridgeLoaderComponent loader, EntInsertedIntoContainerMessage args)
+    {
+        RaiseLocalEvent(args.Entity, new CartridgeAddedEvent(uid));
+        base.OnItemInserted(uid, loader, args);
+    }
+
+    protected override void OnItemRemoved(EntityUid uid, SharedCartridgeLoaderComponent loader, EntRemovedFromContainerMessage args)
+    {
+        var deactivate = loader.BackgroundPrograms.Remove(args.Entity);
+
+        if (loader.ActiveProgram == args.Entity)
+        {
+            loader.ActiveProgram = default;
+            deactivate = true;
+        }
+
+        if (deactivate)
+            RaiseLocalEvent(args.Entity, new CartridgeDeactivatedEvent(uid));
+
+        RaiseLocalEvent(args.Entity, new CartridgeRemovedEvent(uid));
+        base.OnItemRemoved(uid, loader, args);
+    }
+
+    /// <summary>
+    /// Installs programs from the list of preinstalled programs
+    /// </summary>
+    private void OnMapInit(EntityUid uid, CartridgeLoaderComponent component, MapInitEvent args)
+    {
+        foreach (var prototype in component.PreinstalledPrograms)
+        {
+            InstallProgram(uid, prototype);
+        }
+    }
+
+    private void OnUsed(EntityUid uid, CartridgeLoaderComponent component, AfterInteractEvent args)
+    {
+        RelayEvent(component, new CartridgeAfterInteractEvent(uid, args));
+    }
+
+    private void OnPacketReceived(EntityUid uid, CartridgeLoaderComponent component, DeviceNetworkPacketEvent args)
+    {
+        RelayEvent(component, new CartridgeDeviceNetPacketEvent(uid, args));
+    }
+
+    private void OnLoaderUiMessage(EntityUid loaderUid, CartridgeLoaderComponent component, CartridgeLoaderUiMessage message)
+    {
+        switch (message.Action)
+        {
+            case CartridgeUiMessageAction.Activate:
+                ActivateProgram(loaderUid, message.CartridgeUid, component);
+                break;
+            case CartridgeUiMessageAction.Deactivate:
+                DeactivateProgram(loaderUid, message.CartridgeUid, component);
+                break;
+            case CartridgeUiMessageAction.Install:
+                InstallCartridge(loaderUid, message.CartridgeUid, component);
+                break;
+            case CartridgeUiMessageAction.Uninstall:
+                UninstallProgram(loaderUid, message.CartridgeUid, component);
+                break;
+            case CartridgeUiMessageAction.UIReady:
+                if (component.ActiveProgram.HasValue)
+                    RaiseLocalEvent(component.ActiveProgram.Value, new CartridgeUiReadyEvent(loaderUid));
+                break;
+            default:
+                throw new ArgumentOutOfRangeException();
+        }
+    }
+
+    /// <summary>
+    /// Relays ui messages meant for cartridges to the currently active cartridge
+    /// </summary>
+    private void OnUiMessage(EntityUid uid, CartridgeLoaderComponent component, CartridgeUiMessage args)
+    {
+        var cartridgeEvent = args.MessageEvent;
+        cartridgeEvent.LoaderUid = uid;
+
+        RelayEvent(component, cartridgeEvent, true);
+    }
+
+    /// <summary>
+    /// Relays events to the currently active program and and programs running in the background.
+    /// Skips background programs if "skipBackgroundPrograms" is set to true
+    /// </summary>
+    /// <param name="loader">The cartritge loader component</param>
+    /// <param name="args">The event to be relayed</param>
+    /// <param name="skipBackgroundPrograms">Whether to skip relaying the event to programs running in the background</param>
+    private void RelayEvent<TEvent>(CartridgeLoaderComponent loader, TEvent args, bool skipBackgroundPrograms = false) where TEvent : notnull
+    {
+        if (loader.ActiveProgram.HasValue)
+            RaiseLocalEvent(loader.ActiveProgram.Value, args);
+
+        if (skipBackgroundPrograms)
+            return;
+
+        foreach (var program in loader.BackgroundPrograms)
+        {
+            //Prevent programs registered as running in the background receiving events twice if they are active
+            if (loader.ActiveProgram.HasValue && loader.ActiveProgram.Value.Equals(program))
+                continue;
+
+            RaiseLocalEvent(program, args);
+        }
+    }
+
+    /// <summary>
+    /// Checks if a program is already installed by searching for its prototype name in the list of installed programs
+    /// </summary>
+    private bool IsInstalled(string? prototype, CartridgeLoaderComponent loader)
+    {
+        foreach (var program in loader.InstalledPrograms)
+        {
+            if (Prototype(program)?.ID == prototype)
+                return true;
+        }
+
+        return false;
+    }
+
+    /// <summary>
+    /// Shortcut for updating the loaders user interface state without passing in a subtype of <see cref="CartridgeLoaderUiState"/>
+    /// like the <see cref="PDA.PDASystem"/> does when updating its ui state
+    /// </summary>
+    /// <seealso cref="PDA.PDASystem.UpdatePDAUserInterface"/>
+    private void UpdateUserInterfaceState(EntityUid loaderUid, CartridgeLoaderComponent loader)
+    {
+        UpdateUiState(loaderUid, new CartridgeLoaderUiState(), null, loader);
+    }
+
+    private void UpdateCartridgeInstallationStatus(EntityUid cartridgeUid, InstallationStatus installationStatus, CartridgeComponent? cartridgeComponent = default!)
+    {
+        if (Resolve(cartridgeUid, ref cartridgeComponent))
+        {
+            cartridgeComponent.InstallationStatus = installationStatus;
+            Dirty(cartridgeComponent);
+        }
+    }
+
+    private bool ContainsCartridge(EntityUid cartridgeUid, CartridgeLoaderComponent loader , bool onlyInstalled = false)
+    {
+        return !onlyInstalled && loader.CartridgeSlot.Item?.Equals(cartridgeUid) == true || loader.InstalledPrograms.Contains(cartridgeUid);
+    }
+}
+
+/// <summary>
+/// Gets sent to running programs when the cartridge loader receives a device net package
+/// </summary>
+/// <seealso cref="DeviceNetworkPacketEvent"/>
+public sealed class CartridgeDeviceNetPacketEvent : EntityEventArgs
+{
+    public readonly EntityUid Loader;
+    public readonly DeviceNetworkPacketEvent PacketEvent;
+
+    public CartridgeDeviceNetPacketEvent(EntityUid loader, DeviceNetworkPacketEvent packetEvent)
+    {
+        Loader = loader;
+        PacketEvent = packetEvent;
+    }
+}
+
+/// <summary>
+/// Gets sent to running programs when the cartridge loader receives an after interact event
+/// </summary>
+/// <seealso cref="AfterInteractEvent"/>
+public sealed class CartridgeAfterInteractEvent : EntityEventArgs
+{
+    public readonly EntityUid Loader;
+    public readonly AfterInteractEvent InteractEvent;
+
+    public CartridgeAfterInteractEvent(EntityUid loader, AfterInteractEvent interactEvent)
+    {
+        Loader = loader;
+        InteractEvent = interactEvent;
+    }
+}

Content.Server/CartridgeLoader/Cartridges/NotekeeperCartridgeComponent.cs

@@ -0,0 +1,11 @@
+namespace Content.Server.CartridgeLoader.Cartridges;
+
+[RegisterComponent]
+public sealed class NotekeeperCartridgeComponent : Component
+{
+    /// <summary>
+    /// The list of notes that got written down
+    /// </summary>
+    [DataField("notes")]
+    public List<string> Notes = new();
+}

Content.Server/CartridgeLoader/Cartridges/NotekeeperCartridgeSystem.cs

@@ -0,0 +1,57 @@
+using Content.Shared.CartridgeLoader;
+using Content.Shared.CartridgeLoader.Cartridges;
+
+namespace Content.Server.CartridgeLoader.Cartridges;
+
+public sealed class NotekeeperCartridgeSystem : EntitySystem
+{
+    [Dependency] private readonly CartridgeLoaderSystem? _cartridgeLoaderSystem = default!;
+
+    public override void Initialize()
+    {
+        base.Initialize();
+        SubscribeLocalEvent<NotekeeperCartridgeComponent, CartridgeMessageEvent>(OnUiMessage);
+        SubscribeLocalEvent<NotekeeperCartridgeComponent, CartridgeUiReadyEvent>(OnUiReady);
+    }
+
+    /// <summary>
+    /// This gets called when the ui fragment needs to be updated for the first time after activating
+    /// </summary>
+    private void OnUiReady(EntityUid uid, NotekeeperCartridgeComponent component, CartridgeUiReadyEvent args)
+    {
+        UpdateUiState(uid, args.Loader, component);
+    }
+
+    /// <summary>
+    /// The ui messages received here get wrapped by a CartridgeMessageEvent and are relayed from the <see cref="CartridgeLoaderSystem"/>
+    /// </summary>
+    /// <remarks>
+    /// The cartridge specific ui message event needs to inherit from the CartridgeMessageEvent
+    /// </remarks>
+    private void OnUiMessage(EntityUid uid, NotekeeperCartridgeComponent component, CartridgeMessageEvent args)
+    {
+        if (args is not NotekeeperUiMessageEvent message)
+            return;
+
+        if (message.Action == NotekeeperUiAction.Add)
+        {
+            component.Notes.Add(message.Note);
+        }
+        else
+        {
+            component.Notes.Remove(message.Note);
+        }
+
+        UpdateUiState(uid, args.LoaderUid, component);
+    }
+
+
+    private void UpdateUiState(EntityUid uid, EntityUid loaderUid, NotekeeperCartridgeComponent? component)
+    {
+        if (!Resolve(uid, ref component))
+            return;
+
+        var state = new NotekeeperUiState(component.Notes);
+        _cartridgeLoaderSystem?.UpdateCartridgeUiState(loaderUid, state);
+    }
+}

Content.Server/Entry/IgnoredComponents.cs

@@ -15,6 +15,8 @@ namespace Content.Server.Entry
             "ClientEntitySpawner",
             "HandheldGPS",
             "CableVisualizer",
+            "CartridgeUi",
+            "PDABorderColor",
         };
     }
 }

Content.Server/PDA/PDASystem.cs

@@ -1,3 +1,5 @@
+using Content.Server.CartridgeLoader;
+using Content.Server.DeviceNetwork.Components;
 using Content.Server.Instruments;
 using Content.Server.Light.Components;
 using Content.Server.Light.EntitySystems;
@@ -23,6 +25,7 @@ namespace Content.Server.PDA
         [Dependency] private readonly InstrumentSystem _instrumentSystem = default!;
         [Dependency] private readonly UserInterfaceSystem _uiSystem = default!;
         [Dependency] private readonly StationSystem _stationSystem = default!;
+        [Dependency] private readonly CartridgeLoaderSystem _cartridgeLoaderSystem = default!;
         [Dependency] private readonly StoreSystem _storeSystem = default!;
 
         public override void Initialize()
@@ -101,10 +104,11 @@ namespace Content.Server.PDA
             if (!_uiSystem.TryGetUi(pda.Owner, PDAUiKey.Key, out var ui))
                 return;
 
+            var address = GetDeviceNetAddress(pda.Owner);
             var hasInstrument = HasComp<InstrumentComponent>(pda.Owner);
-            var state = new PDAUpdateState(pda.FlashlightOn, pda.PenSlot.HasItem, ownerInfo, pda.StationName, false, hasInstrument);
+            var state = new PDAUpdateState(pda.FlashlightOn, pda.PenSlot.HasItem, ownerInfo, pda.StationName, false, hasInstrument, address);
 
-            ui.SetState(state);
+            _cartridgeLoaderSystem?.UpdateUiState(pda.Owner, state);
 
             // TODO UPLINK RINGTONES/SECRETS This is just a janky placeholder way of hiding uplinks from non syndicate
             // players. This should really use a sort of key-code entry system that selects an account which is not directly tied to
@@ -113,7 +117,7 @@ namespace Content.Server.PDA
             if (!TryComp<StoreComponent>(pda.Owner, out var storeComponent))
                 return;
 
-            var uplinkState = new PDAUpdateState(pda.FlashlightOn, pda.PenSlot.HasItem, ownerInfo, pda.StationName, true, hasInstrument);
+            var uplinkState = new PDAUpdateState(pda.FlashlightOn, pda.PenSlot.HasItem, ownerInfo, pda.StationName, true, hasInstrument, address);
 
             foreach (var session in ui.SubscribedSessions)
             {
@@ -122,7 +126,7 @@ namespace Content.Server.PDA
 
                 if (storeComponent.AccountOwner == user || (TryComp<MindComponent>(session.AttachedEntity, out var mindcomp) && mindcomp.Mind != null &&
                     mindcomp.Mind.HasRole<TraitorRole>()))
-                    ui.SetState(uplinkState, session);
+                    _cartridgeLoaderSystem?.UpdateUiState(pda.Owner, uplinkState, session);
             }
         }
 
@@ -190,9 +194,21 @@ namespace Content.Server.PDA
                 JobTitle = pda.ContainedID?.JobTitle
             };
 
-            var state = new PDAUpdateState(pda.FlashlightOn, pda.PenSlot.HasItem, ownerInfo, pda.StationName, true, HasComp<InstrumentComponent>(pda.Owner));
+            var state = new PDAUpdateState(pda.FlashlightOn, pda.PenSlot.HasItem, ownerInfo, pda.StationName, true, HasComp<InstrumentComponent>(pda.Owner), GetDeviceNetAddress(pda.Owner));
 
-            ui.SetState(state, args.Session);
+            _cartridgeLoaderSystem?.UpdateUiState(uid, state, args.Session);
+        }
+
+        private string? GetDeviceNetAddress(EntityUid uid)
+        {
+            string? address = null;
+
+            if (TryComp(uid, out DeviceNetworkComponent? deviceNetworkComponent))
+            {
+                address = deviceNetworkComponent?.Address;
+            }
+
+            return address;
         }
     }
 }

Content.Shared/CartridgeLoader/CartridgeComponent.cs

@@ -0,0 +1,35 @@
+using Robust.Shared.GameStates;
+using Robust.Shared.Serialization;
+using Robust.Shared.Utility;
+
+namespace Content.Shared.CartridgeLoader;
+
+/// <summary>
+/// This is used for defining values used for displaying in the program ui in yaml
+/// </summary>
+[NetworkedComponent]
+[RegisterComponent]
+public sealed class CartridgeComponent : Component
+{
+    [DataField("programName", required: true)]
+    public string ProgramName = "default-program-name";
+
+    [DataField("icon")]
+    public SpriteSpecifier? Icon;
+
+    public InstallationStatus InstallationStatus = InstallationStatus.Cartridge;
+}
+
+[Serializable, NetSerializable]
+public sealed class CartridgeComponentState : ComponentState
+{
+    public InstallationStatus InstallationStatus;
+}
+
+[Serializable, NetSerializable]
+public enum InstallationStatus
+{
+    Cartridge,
+    Installed,
+    Readonly
+}

Content.Shared/CartridgeLoader/CartridgeLoaderUiMessage.cs

@@ -0,0 +1,26 @@
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.CartridgeLoader;
+
+[Serializable, NetSerializable]
+public sealed class CartridgeLoaderUiMessage : BoundUserInterfaceMessage
+{
+    public readonly EntityUid CartridgeUid;
+    public readonly CartridgeUiMessageAction Action;
+
+    public CartridgeLoaderUiMessage(EntityUid cartridgeUid, CartridgeUiMessageAction action)
+    {
+        CartridgeUid = cartridgeUid;
+        Action = action;
+    }
+}
+
+[Serializable, NetSerializable]
+public enum CartridgeUiMessageAction
+{
+    Activate,
+    Deactivate,
+    Install,
+    Uninstall,
+    UIReady
+}

Content.Shared/CartridgeLoader/CartridgeLoaderUiState.cs

@@ -0,0 +1,12 @@
+using System.Collections.Immutable;
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.CartridgeLoader;
+
+[Virtual]
+[Serializable, NetSerializable]
+public class CartridgeLoaderUiState : BoundUserInterfaceState
+{
+    public EntityUid? ActiveUI;
+    public List<EntityUid> Programs = new();
+}

Content.Shared/CartridgeLoader/CartridgeLoaderVisuals.cs

@@ -0,0 +1,9 @@
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.CartridgeLoader;
+
+[Serializable, NetSerializable]
+public enum CartridgeLoaderVisuals
+{
+    CartridgeInserted
+}

Content.Shared/CartridgeLoader/CartridgeUiMessage.cs

@@ -0,0 +1,20 @@
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.CartridgeLoader;
+
+[Serializable, NetSerializable]
+public sealed class CartridgeUiMessage : BoundUserInterfaceMessage
+{
+    public CartridgeMessageEvent MessageEvent;
+
+    public CartridgeUiMessage(CartridgeMessageEvent messageEvent)
+    {
+        MessageEvent = messageEvent;
+    }
+}
+
+[Serializable, NetSerializable]
+public abstract class CartridgeMessageEvent : EntityEventArgs
+{
+    public EntityUid LoaderUid;
+}

Content.Shared/CartridgeLoader/Cartridges/NotekeeperUiMessageEvent.cs

@@ -0,0 +1,23 @@
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.CartridgeLoader.Cartridges;
+
+[Serializable, NetSerializable]
+public sealed class NotekeeperUiMessageEvent : CartridgeMessageEvent
+{
+    public readonly NotekeeperUiAction Action;
+    public readonly string Note;
+
+    public NotekeeperUiMessageEvent(NotekeeperUiAction action, string note)
+    {
+        Action = action;
+        Note = note;
+    }
+}
+
+[Serializable, NetSerializable]
+public enum NotekeeperUiAction
+{
+    Add,
+    Remove
+}

Content.Shared/CartridgeLoader/Cartridges/NotekeeperUiState.cs

@@ -0,0 +1,14 @@
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.CartridgeLoader.Cartridges;
+
+[Serializable, NetSerializable]
+public sealed class NotekeeperUiState : BoundUserInterfaceState
+{
+    public List<String> Notes;
+
+    public NotekeeperUiState(List<string> notes)
+    {
+        Notes = notes;
+    }
+}

Content.Shared/CartridgeLoader/SharedCartridgeLoaderComponent.cs

@@ -0,0 +1,36 @@
+using Content.Shared.Containers.ItemSlots;
+
+namespace Content.Shared.CartridgeLoader;
+
+[Access(typeof(SharedCartridgeLoaderSystem))]
+public abstract class SharedCartridgeLoaderComponent : Component
+{
+    public const string CartridgeSlotId = "Cartridge-Slot";
+
+    [DataField("cartridgeSlot")]
+    public ItemSlot CartridgeSlot = new();
+
+    /// <summary>
+    /// List of programs that come preinstalled with this cartridge loader
+    /// </summary>
+    [DataField("preinstalled")]
+    public List<string> PreinstalledPrograms = new();
+
+    /// <summary>
+    /// The currently running program that has its ui showing
+    /// </summary>
+    [ViewVariables(VVAccess.ReadWrite)]
+    public EntityUid? ActiveProgram = default;
+
+    /// <summary>
+    /// The list of programs running in the background, listening to certain events
+    /// </summary>
+    [ViewVariables]
+    public readonly List<EntityUid> BackgroundPrograms = new();
+
+    /// <summary>
+    /// The list of program entities that are spawned into the cartridge loaders program container
+    /// </summary>
+    [DataField("installedCartridges")]
+    public List<EntityUid> InstalledPrograms = new();
+}

Content.Shared/CartridgeLoader/SharedCartridgeLoaderSystem.cs

@@ -0,0 +1,147 @@
+using Content.Shared.Containers.ItemSlots;
+using Robust.Shared.Containers;
+using Robust.Shared.GameStates;
+using Robust.Shared.Map;
+
+namespace Content.Shared.CartridgeLoader;
+
+public abstract class SharedCartridgeLoaderSystem : EntitySystem
+{
+    [Dependency] private readonly ItemSlotsSystem _itemSlotsSystem = default!;
+    [Dependency] private readonly SharedAppearanceSystem _appearanceSystem = default!;
+
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<SharedCartridgeLoaderComponent, ComponentInit>(OnComponentInit);
+        SubscribeLocalEvent<SharedCartridgeLoaderComponent, ComponentRemove>(OnComponentRemove);
+
+        SubscribeLocalEvent<SharedCartridgeLoaderComponent, EntInsertedIntoContainerMessage>(OnItemInserted);
+        SubscribeLocalEvent<SharedCartridgeLoaderComponent, EntRemovedFromContainerMessage>(OnItemRemoved);
+
+        SubscribeLocalEvent<CartridgeComponent, ComponentGetState>(OnGetState);
+        SubscribeLocalEvent<CartridgeComponent, ComponentHandleState>(OnHandleState);
+
+    }
+
+    private void OnComponentInit(EntityUid uid, SharedCartridgeLoaderComponent loader, ComponentInit args)
+    {
+        _itemSlotsSystem.AddItemSlot(uid, SharedCartridgeLoaderComponent.CartridgeSlotId, loader.CartridgeSlot);
+    }
+
+    /// <summary>
+    /// Marks installed program entities for deletion when the component gets removed
+    /// </summary>
+    private void OnComponentRemove(EntityUid uid, SharedCartridgeLoaderComponent loader, ComponentRemove args)
+    {
+        _itemSlotsSystem.RemoveItemSlot(uid, loader.CartridgeSlot);
+
+        foreach (var program in loader.InstalledPrograms)
+        {
+               EntityManager.QueueDeleteEntity(program);
+        }
+    }
+
+    protected virtual void OnItemInserted(EntityUid uid, SharedCartridgeLoaderComponent loader, EntInsertedIntoContainerMessage args)
+    {
+        UpdateAppearanceData(uid, loader);
+    }
+
+    protected virtual void OnItemRemoved(EntityUid uid, SharedCartridgeLoaderComponent loader, EntRemovedFromContainerMessage args)
+    {
+        UpdateAppearanceData(uid, loader);
+    }
+
+    private void OnGetState(EntityUid uid, CartridgeComponent component, ref ComponentGetState args)
+    {
+        var state = new CartridgeComponentState();
+        state.InstallationStatus = component.InstallationStatus;
+
+        args.State = state;
+    }
+
+    private void OnHandleState(EntityUid uid, CartridgeComponent component, ref ComponentHandleState args)
+    {
+        if (args.Current is not CartridgeComponentState state)
+            return;
+
+        component.InstallationStatus = state.InstallationStatus;
+    }
+
+    private void UpdateAppearanceData(EntityUid uid, SharedCartridgeLoaderComponent loader)
+    {
+        _appearanceSystem.SetData(uid, CartridgeLoaderVisuals.CartridgeInserted, loader.CartridgeSlot.HasItem);
+    }
+}
+
+/// <summary>
+/// Gets sent to program / cartridge entities when they get inserted or installed
+/// </summary>
+public sealed class CartridgeAddedEvent : EntityEventArgs
+{
+    public readonly EntityUid Loader;
+
+    public CartridgeAddedEvent(EntityUid loader)
+    {
+        Loader = loader;
+    }
+}
+
+/// <summary>
+/// Gets sent to cartridge entities when they get ejected
+/// </summary>
+public sealed class CartridgeRemovedEvent : EntityEventArgs
+{
+    public readonly EntityUid Loader;
+
+    public CartridgeRemovedEvent(EntityUid loader)
+    {
+        Loader = loader;
+    }
+}
+
+/// <summary>
+/// Gets sent to program / cartridge entities when they get activated
+/// </summary>
+/// <remarks>
+/// Don't update the programs ui state in this events listener
+/// </remarks>
+public sealed class CartridgeActivatedEvent : EntityEventArgs
+{
+    public readonly EntityUid Loader;
+
+    public CartridgeActivatedEvent(EntityUid loader)
+    {
+        Loader = loader;
+    }
+}
+
+/// <summary>
+/// Gets sent to program / cartridge entities when they get deactivated
+/// </summary>
+public sealed class CartridgeDeactivatedEvent : EntityEventArgs
+{
+    public readonly EntityUid Loader;
+
+    public CartridgeDeactivatedEvent(EntityUid loader)
+    {
+        Loader = loader;
+    }
+}
+
+/// <summary>
+/// Gets sent to program / cartridge entities when the ui is ready to be updated by the cartridge.
+/// </summary>
+/// <remarks>
+/// This is used for the initial ui state update because updating the ui in the activate event doesn't work
+/// </remarks>
+public sealed class CartridgeUiReadyEvent : EntityEventArgs
+{
+    public readonly EntityUid Loader;
+
+    public CartridgeUiReadyEvent(EntityUid loader)
+    {
+        Loader = loader;
+    }
+}

Content.Shared/PDA/PDAUpdateState.cs

@@ -1,10 +1,11 @@
+using Content.Shared.CartridgeLoader;
 using Robust.Shared.Serialization;
 
 
 namespace Content.Shared.PDA
 {
     [Serializable, NetSerializable]
-    public sealed class PDAUpdateState : BoundUserInterfaceState
+    public sealed class PDAUpdateState : CartridgeLoaderUiState
     {
         public bool FlashlightEnabled;
         public bool HasPen;
@@ -12,15 +13,17 @@ namespace Content.Shared.PDA
         public string? StationName;
         public bool HasUplink;
         public bool CanPlayMusic;
+        public string? Address;
 
-        public PDAUpdateState(bool flashlightEnabled, bool hasPen, PDAIdInfoText pDAOwnerInfo, string? stationName, bool hasUplink = false, bool canPlayMusic = false)
+        public PDAUpdateState(bool flashlightEnabled, bool hasPen, PDAIdInfoText pdaOwnerInfo, string? stationName, bool hasUplink = false, bool canPlayMusic = false, string? address = null)
         {
             FlashlightEnabled = flashlightEnabled;
             HasPen = hasPen;
-            PDAOwnerInfo = pDAOwnerInfo;
+            PDAOwnerInfo = pdaOwnerInfo;
             HasUplink = hasUplink;
             CanPlayMusic = canPlayMusic;
             StationName = stationName;
+            Address = address;
         }
     }
 

Resources/Locale/en-US/cartridge-loader/cartridge-loader-component.ftl

@@ -0,0 +1,2 @@
+cartridge-bound-user-interface-install-button = Install
+cartridge-bound-user-interface-uninstall-button = Remove

Resources/Locale/en-US/cartridge-loader/cartridges.ftl

@@ -0,0 +1,6 @@
+default-program-name = Program
+
+ent-notekeeper-cartridge = notekeeper cartridge
+    .desc = A program for keeping notes
+
+notekeeper-program-name = Notekeeper

Resources/Locale/en-US/crew-manifest/crew-manifest.ftl

@@ -1,3 +1,4 @@
 crew-manifest-window-title = Crew Manifest
 crew-manifest-button-label = Crew Manifest
+crew-manifest-button-description = Show a list of your fellow crewmembers
 crew-manifest-no-valid-station = Invalid station, or empty manifest!

Resources/Locale/en-US/devices/device-network.ftl

@@ -3,6 +3,7 @@ device-frequency-prototype-name-atmos = Atmospheric Devices
 device-frequency-prototype-name-suit-sensors = Suit Sensors
 device-frequency-prototype-name-lights = Smart Lights
 device-frequency-prototype-name-mailing-units = Mailing Units
+device-frequency-prototype-name-pdas = PDAs
 
 ## camera frequencies
 device-frequency-prototype-name-surveillance-camera-test = Subnet Test
@@ -20,6 +21,9 @@ device-frequency-prototype-name-surveillance-camera-entertainment = Entertainmen
 device-address-prefix-vent = Vnt-
 device-address-prefix-scrubber = Scr-
 device-address-prefix-sensor = Sns-
+
+#PDAs and terminals
+device-address-prefix-console = Cls-
 device-address-prefix-fire-alarm = Fir-
 device-address-prefix-air-alarm = Air-
 

Resources/Locale/en-US/pda/pda-component.ftl

@@ -8,10 +8,18 @@ comp-pda-ui-blank = ID:
 
 comp-pda-ui-owner = Owner: [color=white]{$ActualOwnerName}[/color]
 
-pda-bound-user-interface-main-menu-tab-title = Main Menu
+comp-pda-io-program-list-button = Programs
+
+comp-pda-io-settings-button = Settings
+
+comp-pda-io-program-fallback-title = Program
+
+comp-pda-io-no-programs-available = No Programs Available
 
 pda-bound-user-interface-uplink-tab-title = Uplink
 
+pda-bound-user-interface-uplink-tab-description = Access your uplink
+
 comp-pda-ui-menu-title = PDA
 
 comp-pda-ui-station = Station: [color=white]{$Station}[/color]
@@ -22,10 +30,14 @@ comp-pda-ui-eject-pen-button = Eject Pen
 
 comp-pda-ui-ringtone-button = Ringtone
 
+comp-pda-ui-ringtone-button-description = Change your PDA's ringtone
+
 comp-pda-ui-toggle-flashlight-button = Toggle Flashlight
 
 pda-bound-user-interface-music-button = Music Instrument
 
+pda-bound-user-interface-music-button-description = Play music on your PDA
+
 comp-pda-ui-unknown = Unknown
 
 comp-pda-ui-unassigned = Unassigned

Resources/Prototypes/Device/devicenet_frequencies.yml

@@ -69,3 +69,8 @@
   id: MailingUnit
   name: device-frequency-prototype-name-mailing-units
   frequency: 2300
+
+- type: deviceFrequency
+  id: PDA
+  name: device-frequency-prototype-name-pdas
+  frequency: 2202

Resources/Prototypes/Entities/Objects/Devices/cartridges.yml

@@ -0,0 +1,21 @@
+- type: entity
+  parent: BaseItem
+  id: NotekeeperCartridge
+  components:
+  - type: Sprite
+    sprite: Objects/Devices/cartridge.rsi
+    state: cart-y
+    netsync: false
+  - type: Icon
+    sprite: Objects/Devices/cartridge.rsi
+    state: cart-y
+  - type: CartridgeUi
+    ui: !type:NotekeeperUi
+  - type: Cartridge
+    programName: notekeeper-program-name
+    icon:
+      sprite:  Objects/Misc/books.rsi
+      state: book6
+  - type: NotekeeperCartridge
+
+

Resources/Prototypes/Entities/Objects/Devices/pda.yml

@@ -21,6 +21,8 @@
     containers:
       PDA-id: !type:ContainerSlot {}
       PDA-pen: !type:ContainerSlot {}
+      Cartridge-Slot: !type:ContainerSlot {}
+      program-container: !type:Container
   - type: ItemSlots
   - type: Clothing
     quickEquip: false
@@ -41,6 +43,24 @@
     mask: /Textures/Effects/LightMasks/cone.png
     autoRot: true
   - type: Ringer
+  - type: DeviceNetwork
+    deviceNetId: Wireless
+    receiveFrequencyId: PDA
+    prefix: device-address-prefix-console
+  - type: WirelessNetworkConnection
+    range: 500
+  - type: CartridgeLoader
+    uiKey: enum.PDAUiKey.Key
+    preinstalled:
+      - NotekeeperCartridge
+    cartridgeSlot:
+      priority: -1
+      name: Cartridge
+      ejectSound: /Audio/Machines/id_swipe.ogg
+      insertSound: /Audio/Weapons/Guns/MagIn/batrifle_magin.ogg
+      whitelist:
+        components:
+          - Cartridge
   - type: ActivatableUI
     key: enum.PDAUiKey.Key
     singleUser: true
@@ -87,6 +107,8 @@
   components:
   - type: PDA
     id: PassengerIDCard
+  - type: PDABorderColor
+    borderColor: "#717059"
 
 - type: entity
   parent: BasePDA
@@ -162,6 +184,8 @@
     visuals:
     - type: PDAVisualizer
       state: pda-cook
+  - type: PDABorderColor
+    borderColor: "#d7d7d0"
   - type: Icon
     state: pda-cook
 
@@ -200,6 +224,8 @@
     visuals:
       - type: PDAVisualizer
         state: pda-clown
+  - type: PDABorderColor
+    borderColor: "#C18199"
   - type: Icon
     state: pda-clown
   - type: Slippery
@@ -258,6 +284,8 @@
     visuals:
       - type: PDAVisualizer
         state: pda-chaplain
+  - type: PDABorderColor
+    borderColor: "#333333"
   - type: Icon
     state: pda-chaplain
 
@@ -363,6 +391,8 @@
     visuals:
       - type: PDAVisualizer
         state: pda-janitor
+  - type: PDABorderColor
+    borderColor: "#5D2D56"
   - type: Icon
     state: pda-janitor
 
@@ -384,6 +414,8 @@
     visuals:
       - type: PDAVisualizer
         state: pda-captain
+  - type: PDABorderColor
+    borderColor: "#7C5D00"
   - type: Icon
     state: pda-captain
 
@@ -416,6 +448,9 @@
   components:
   - type: PDA
     id: CEIDCard
+  - type: PDABorderColor
+    borderColor: "#949137"
+    accentHColor: "#447987"
   - type: Appearance
     visuals:
       - type: PDAVisualizer
@@ -450,6 +485,10 @@
     visuals:
       - type: PDAVisualizer
         state: pda-cmo
+  - type: PDABorderColor
+    borderColor: "#d7d7d0"
+    accentHColor: "#447987"
+    accentVColor: "#447987"
   - type: Icon
     state: pda-cmo
   - type: HealthAnalyzer
@@ -467,6 +506,9 @@
     visuals:
       - type: PDAVisualizer
         state: pda-medical
+  - type: PDABorderColor
+    borderColor: "#d7d7d0"
+    accentVColor: "#447987"
   - type: Icon
     state: pda-medical
   - type: HealthAnalyzer
@@ -484,6 +526,9 @@
     visuals:
       - type: PDAVisualizer
         state: pda-chemistry
+  - type: PDABorderColor
+    borderColor: "#d7d7d0"
+    accentVColor: "#B34200"
   - type: Icon
     state: pda-chemistry
 
@@ -529,6 +574,9 @@
     visuals:
       - type: PDAVisualizer
         state: pda-hos
+  - type: PDABorderColor
+    borderColor: "#A32D26"
+    accentHColor: "#447987"
   - type: Icon
     state: pda-hos
 
@@ -642,6 +690,9 @@
   components:
   - type: PDA
     id: ERTLeaderIDCard
+  - type: PDABorderColor
+    borderColor: "#A32D26"
+    accentHColor: "#447987"
   - type: Appearance
     visuals:
     - type: PDAVisualizer
@@ -657,6 +708,9 @@
   components:
   - type: PDA
     id: CBURNIDcard
+  - type: PDABorderColor
+    borderColor: "#A32D26"
+    accentHColor: "#447987"
 
 - type: entity
   parent: BasePDA
@@ -670,6 +724,9 @@
     visuals:
       - type: PDAVisualizer
         state: pda-medical
+  - type: PDABorderColor
+    borderColor: "#d7d7d0"
+    accentVColor: "#447987"
   - type: Icon
     state: pda-medical
 
@@ -715,6 +772,9 @@
     visuals:
       - type: PDAVisualizer
         state: pda-boxer
+  - type: PDABorderColor
+    borderColor: "#333333"
+    borderVColor: "#390504"
   - type: Icon
     state: pda-boxer
 
@@ -730,5 +790,7 @@
     visuals:
       - type: PDAVisualizer
         state: pda-detective
+  - type: PDABorderColor
+    borderColor: "#774705"
   - type: Icon
     state: pda-detective

Resources/Textures/Interface/Nano/geometric_panel_border.svg

@@ -0,0 +1,144 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   width="24"
+   height="24"
+   viewBox="0 0 6.3499998 6.3499999"
+   version="1.1"
+   id="svg1055"
+   inkscape:version="1.2.1 (9c6d41e410, 2022-07-14)"
+   sodipodi:docname="geometric_panel_border.svg"
+   inkscape:export-filename="geometric_panel_border.svg.96dpi.png"
+   inkscape:export-xdpi="96"
+   inkscape:export-ydpi="96"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:dc="http://purl.org/dc/elements/1.1/">
+  <defs
+     id="defs1049" />
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0.0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="32"
+     inkscape:cx="6.140625"
+     inkscape:cy="12.15625"
+     inkscape:document-units="mm"
+     inkscape:current-layer="layer1"
+     showgrid="true"
+     inkscape:pagecheckerboard="true"
+     inkscape:window-width="1920"
+     inkscape:window-height="1057"
+     inkscape:window-x="-8"
+     inkscape:window-y="-8"
+     inkscape:window-maximized="1"
+     units="px"
+     inkscape:snap-page="true"
+     inkscape:showpageshadow="2"
+     inkscape:deskcolor="#d1d1d1"
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+       empopacity="0.75686275"
+       enabled="true"
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+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
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+     inkscape:label="Layer 1"
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+       id="rect1684"
+       style="opacity:1;fill:#000000;fill-opacity:0.25;fill-rule:nonzero;stroke:none;stroke-width:0.264583;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:0.247312;paint-order:normal"
+       d="m 83.55267,133.93878 2.645833,2.64583 v 3.70417 h -3.704167 l -2.645833,-2.64583 v -3.70417 z m -2.910417,3.37476 2.18149,2.18149 2.58101,0 v -2.58101 l -2.18149,-2.18149 -2.58101,0 z"
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Resources/Textures/Interface/home.svg

@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="21" height="20" fill="none" viewBox="0 0 21 20">
+  <path stroke="#fff" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="m3.224 7.5 7.258-5.833L17.739 7.5v9.167c0 .442-.17.866-.473 1.178a1.586 1.586 0 0 1-1.14.488H4.837c-.428 0-.838-.175-1.14-.488a1.695 1.695 0 0 1-.473-1.178V7.5Z"/>
+  <path stroke="#fff" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8.063 18.333V10H12.9v8.333"/>
+</svg>

Resources/Textures/Interface/pencil.svg

@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="19" height="18" fill="none" viewBox="0 0 19 18">
+  <path fill="#FFFBFB" d="M15.167 2.455 1 15.545V17h1.417L16.583 3.91l-1.416-1.455Z"/>
+  <path stroke="#fff" d="m18 5.364-5.667 5.818M16.583 1 18 2.455M1 15.545l14.167-13.09 1.416 1.454L2.417 17H1v-1.454Z"/>
+</svg>

Resources/Textures/Objects/Devices/cartridge.rsi/meta.json

@@ -69,6 +69,9 @@
     },
     {
       "name": "cart-tox"
+    },
+    {
+      "name": "cart-y"
     }
   ]
 }

Resources/Textures/Objects/Devices/cartridges.rsi/meta.json

@@ -0,0 +1,77 @@
+{
+  "version": 1,
+  "license": "CC-BY-SA-3.0",
+  "copyright": "Taken from tgstation at https://github.com/tgstation/tgstation/commit/0c15d9dbcf0f2beb230eba5d9d889ef2d1945bb8",
+  "size": {
+    "x": 32,
+    "y": 32
+  },
+  "states": [
+    {
+      "name": "insert_overlay"
+    },
+    {
+      "name": "cart"
+    },
+    {
+      "name": "cart-e"
+    },
+    {
+      "name": "cart-m"
+    },
+    {
+      "name": "cart-chem"
+    },
+    {
+      "name": "cart-c"
+    },
+    {
+      "name": "cart-h"
+    },
+    {
+      "name": "cart-s"
+    },
+    {
+      "name": "cart-clown"
+    },
+    {
+      "name": "cart-a"
+    },
+    {
+      "name": "cart-j"
+    },
+    {
+      "name": "cart-q"
+    },
+    {
+      "name": "cart-ord"
+    },
+    {
+      "name": "cart-tear"
+    },
+    {
+      "name": "cart-b"
+    },
+    {
+      "name": "cart-lib"
+    },
+    {
+      "name": "cart-eye"
+    },
+    {
+      "name": "cart-mi"
+    },
+    {
+      "name": "cart-hos"
+    },
+    {
+      "name": "cart-ce"
+    },
+    {
+      "name": "cart-cmo"
+    },
+    {
+      "name": "cart-rd"
+    }
+  ]
+}