[feat] Custom ghost sprite

Content.Client/White/CustomGhostSpriteSystem/CustomGhostVisualizer.cs

@@ -0,0 +1,25 @@
+using Content.Client.Ghost;
+using Content.Shared.White.CustomGhostSystem;
+using Robust.Client.GameObjects;
+
+namespace Content.Client.White.CustomGhostSpriteSystem;
+
+public sealed class CustomGhostVisualizer : VisualizerSystem<GhostComponent>
+{
+    protected override void OnAppearanceChange(EntityUid uid, GhostComponent component, ref AppearanceChangeEvent args)
+    {
+        base.OnAppearanceChange(uid, component, ref args);
+
+        if(args.Sprite == null) return;
+
+        if (AppearanceSystem.TryGetData<string>(uid, CustomGhostAppearance.Sprite, out var rsiPath, args.Component))
+        {
+            args.Sprite.LayerSetRSI(0, rsiPath);
+        }
+
+        if(AppearanceSystem.TryGetData<float>(uid, CustomGhostAppearance.AlphaOverride, out var alpha, args.Component))
+        {
+            args.Sprite.Color = args.Sprite.Color.WithAlpha(alpha);
+        }
+    }
+}