trackbar track-width semantic update + gamma setting trackbar

src/graphics/render/ChunksRenderer.cpp

@@ -4,6 +4,7 @@
 #include "../../graphics/core/Mesh.hpp"
 #include "../../voxels/Chunk.h"
 #include "../../world/Level.h"
+#include "../../settings.h"
 
 #include <iostream>
 #include <glm/glm.hpp>
@@ -20,7 +21,7 @@ public:
     RendererWorker(
         Level* level, 
         const ContentGfxCache* cache, 
-        const EngineSettings& settings
+        const EngineSettings* settings
     ) : level(level), 
         renderer(RENDERER_CAPACITY, level->content, cache, settings)
     {}
@@ -34,7 +35,7 @@ public:
 ChunksRenderer::ChunksRenderer(
     Level* level, 
     const ContentGfxCache* cache, 
-    const EngineSettings& settings
+    const EngineSettings* settings
 ) : level(level),
     threadPool(
         "chunks-render-pool",