Starting work on moving GUI to event system (doesnt compile)

src/GUIStuff/Elements/ColorRectangleDisplay.hpp

@@ -0,0 +1,31 @@
+#pragma once
+#include "Element.hpp"
+#include <include/effects/SkRuntimeEffect.h>
+
+namespace GUIStuff {
+
+class ColorRectangleDisplay : public Element {
+    public:
+        ColorRectangleDisplay(GUIManager& gui);
+        void layout(const std::function<SkColor4f()>& colorFunc);
+        virtual void clay_draw(SkCanvas* canvas, UpdateInputData& io, Clay_RenderCommand* command, bool skiaAA) override;
+    private:
+        static constexpr const char* alphaBackgroundSksl = 
+        R"V(
+vec4 main(vec2 fragcoord) {
+    vec4 alphaBoard1 = vec4(0.2, 0.2, 0.2, 1.0);
+    vec4 alphaBoard2 = vec4(0.8, 0.8, 0.8, 1.0);
+    
+    vec2 flooredCoords = floor(fragcoord / 10);
+    bool isDark = mod(flooredCoords.x + flooredCoords.y, 2.0) > 0.5;
+  
+    return isDark ? alphaBoard2 : alphaBoard1;
+}
+        )V";
+        std::function<SkColor4f()> colorFunc;
+
+        static sk_sp<SkRuntimeEffect> alphaBackgroundEffect;
+        static sk_sp<SkShader> get_alpha_background_shader();
+};
+
+}