- add: new tiles and another ui tweaks (#11)

* - fix: audio crash

* - tweak: main menu

* connect gui

* some shaders here

* tiles

Content.Client/_White/Overlays/GrainOverlay.cs

@@ -0,0 +1,38 @@
+using Robust.Client.Graphics;
+using Robust.Shared.Enums;
+using Robust.Shared.Prototypes;
+
+namespace Content.Client._White.Overlays;
+
+public sealed class GrainOverlay : Overlay
+{
+    [Dependency] private readonly IPrototypeManager _prototype = default!;
+
+    private readonly ShaderInstance _shader;
+
+    public GrainOverlay()
+    {
+        IoCManager.InjectDependencies(this);
+
+        _shader = _prototype.Index<ShaderPrototype>("Grain").Instance().Duplicate();
+    }
+
+    public override OverlaySpace Space => OverlaySpace.WorldSpace;
+
+    public override bool RequestScreenTexture => true;
+
+    protected override void Draw(in OverlayDrawArgs args)
+    {
+        if (ScreenTexture is null)
+            return;
+
+        var worldHandle = args.WorldHandle;
+
+        _shader.SetParameter("SCREEN_TEXTURE", ScreenTexture);
+        _shader.SetParameter("strength", 40.0f);
+
+        worldHandle.UseShader(_shader);
+        worldHandle.DrawRect(args.WorldBounds, Color.White);
+        worldHandle.UseShader(null);
+    }
+}