Guidebook Tables (#28484)

* PJB's cool table control (it probably doesn't work)

* ok wait wrong file

* Guidebook Tables

Content.Client/Guidebook/Richtext/ColorBox.cs

@@ -0,0 +1,49 @@
+using System.Diagnostics.CodeAnalysis;
+using JetBrains.Annotations;
+using Robust.Client.Graphics;
+using Robust.Client.UserInterface;
+using Robust.Client.UserInterface.Controls;
+
+namespace Content.Client.Guidebook.Richtext;
+
+[UsedImplicitly]
+public sealed class ColorBox : PanelContainer, IDocumentTag
+{
+    public bool TryParseTag(Dictionary<string, string> args, [NotNullWhen(true)] out Control? control)
+    {
+        HorizontalExpand = true;
+        VerticalExpand = true;
+        control = this;
+
+        if (args.TryGetValue("Margin", out var margin))
+            Margin = new Thickness(float.Parse(margin));
+
+        if (args.TryGetValue("HorizontalAlignment", out var halign))
+            HorizontalAlignment = Enum.Parse<HAlignment>(halign);
+        else
+            HorizontalAlignment = HAlignment.Stretch;
+
+        if (args.TryGetValue("VerticalAlignment", out var valign))
+            VerticalAlignment = Enum.Parse<VAlignment>(valign);
+        else
+            VerticalAlignment = VAlignment.Stretch;
+
+        var styleBox =  new StyleBoxFlat();
+        if (args.TryGetValue("Color", out var color))
+            styleBox.BackgroundColor = Color.FromHex(color);
+
+        if (args.TryGetValue("OutlineThickness", out var outlineThickness))
+            styleBox.BorderThickness = new Thickness(float.Parse(outlineThickness));
+        else
+            styleBox.BorderThickness = new Thickness(1);
+
+        if (args.TryGetValue("OutlineColor", out var outlineColor))
+            styleBox.BorderColor = Color.FromHex(outlineColor);
+        else
+            styleBox.BorderColor = Color.White;
+
+        PanelOverride = styleBox;
+
+        return true;
+    }
+}