Fix bug with pipe color (#30645)

Co-authored-by: ArtisticRoomba <145879011+ArtisticRoomba@users.noreply.github.com>

Content.Client/UserInterface/Systems/Storage/Controls/ItemGridPiece.cs

@@ -185,7 +185,12 @@ public sealed class ItemGridPiece : Control, IEntityControl
 
             handle.SetTransform(pos, iconRotation);
             var box = new UIBox2(root, root + sprite.Size * scale);
-            handle.DrawTextureRect(sprite, box);
+
+            var ev = new BeforeRenderInGridEvent(new Color(255, 255, 255));
+            _entityManager.EventBus.RaiseLocalEvent(Entity, ev);
+
+            handle.DrawTextureRect(sprite, box, ev.Color);
+
             handle.SetTransform(GlobalPixelPosition, Angle.Zero);
         }
         else
@@ -298,6 +303,19 @@ public sealed class ItemGridPiece : Control, IEntityControl
     public EntityUid? UiEntity => Entity;
 }
 
+/// <summary>
+///     This event gets raised before a sprite gets drawn in a grid and lets to change the sprite color for several gameobjects that have special sprites to render in containers.
+/// </summary>
+public sealed class BeforeRenderInGridEvent : EntityEventArgs
+{
+    public Color Color { get; set; }
+
+    public BeforeRenderInGridEvent(Color color)
+    {
+        Color = color;
+    }
+}
+
 public enum ItemGridPieceMarks
 {
     First,