Resolves LightBulbVisualizer is Obsolete (#13889)

Content.Client/Light/EntitySystems/LightBulbSystem.cs

@@ -0,0 +1,36 @@
+using Content.Shared.Light.Component;
+using Robust.Client.GameObjects;
+
+namespace Content.Client.Light.Visualizers;
+
+public sealed class LightBulbSystem : VisualizerSystem<LightBulbComponent>
+{
+    protected override void OnAppearanceChange(EntityUid uid, LightBulbComponent comp, ref AppearanceChangeEvent args)
+    {
+        if (args.Sprite == null)
+            return;
+
+        // update sprite state
+        if (AppearanceSystem.TryGetData<LightBulbState>(uid, LightBulbVisuals.State, out var state, args.Component))
+        {
+            switch (state)
+            {
+                case LightBulbState.Normal:
+                    args.Sprite.LayerSetState(LightBulbVisualLayers.Base, comp.NormalSpriteState);
+                    break;
+                case LightBulbState.Broken:
+                    args.Sprite.LayerSetState(LightBulbVisualLayers.Base, comp.BrokenSpriteState);
+                    break;
+                case LightBulbState.Burned:
+                    args.Sprite.LayerSetState(LightBulbVisualLayers.Base, comp.BurnedSpriteState);
+                    break;
+            }
+        }
+
+        // also update sprites color
+        if (AppearanceSystem.TryGetData<Color>(uid, LightBulbVisuals.Color, out var color, args.Component))
+        {
+            args.Sprite.Color = color;
+        }
+    }
+}