add ability to edit ghost colors (#17662)

Content.Client/Ghost/GhostSystem.cs

@@ -148,6 +148,9 @@ namespace Content.Client.Ghost
 
         private void OnGhostState(EntityUid uid, GhostComponent component, ref ComponentHandleState args)
         {
+            if (TryComp<SpriteComponent>(uid, out var sprite))
+                sprite.LayerSetColor(0, component.color);
+
             if (uid != _playerManager.LocalPlayer?.ControlledEntity)
                 return;
 

Content.Shared/Ghost/SharedGhostComponent.cs

@@ -39,6 +39,14 @@ namespace Content.Shared.Ghost
             }
         }
 
+        /// <summary>
+        /// Ghost color
+        /// </summary>
+        /// <remarks>Used to allow admins to change ghost colors. Should be removed if the capability to edit existing sprite colors is ever added back.</remarks>
+        [DataField("color"), AutoNetworkedField]
+        [ViewVariables(VVAccess.ReadWrite)]
+        public Color color = Color.White;
+
         [DataField("canReturnToBody"), AutoNetworkedField]
         private bool _canReturnToBody;
     }

Resources/Prototypes/Entities/Mobs/Player/observer.yml

@@ -31,6 +31,7 @@
   - type: Examiner
     skipChecks: true
   - type: Ghost
+    color: "#fff8"
   - type: IntrinsicRadioReceiver
   - type: ActiveRadio
     channels: