diff --git a/src/frontend/ContentGfxCache.cpp b/src/frontend/ContentGfxCache.cpp
index 3e425510..59fe4caa 100644
--- a/src/frontend/ContentGfxCache.cpp
+++ b/src/frontend/ContentGfxCache.cpp
@@ -26,4 +26,4 @@ ContentGfxCache::ContentGfxCache(const Content* content, Assets* assets) {
 			}
 		}
     }
-}
\ No newline at end of file
+}
diff --git a/src/frontend/hud.cpp b/src/frontend/hud.cpp
index 9c6eac80..5e17ca08 100644
--- a/src/frontend/hud.cpp
+++ b/src/frontend/hud.cpp
@@ -123,6 +123,16 @@ HudRenderer::HudRenderer(Engine* engine, Level* level, const ContentGfxCache* ca
 		sub->add(box);
 		panel->add(sub);
 	}
+	{
+		TrackBar* bar = new TrackBar(0.0f, 1.0f, 1.0f, 0.02f, 2);
+		bar->supplier([=]() {
+			return level->skyLightMutliplier;
+		});
+		bar->consumer([=](double val) {
+			level->skyLightMutliplier = val;
+		});
+		panel->add(bar);
+	}
 	panel->refresh();
 	menu->reset();
 	
diff --git a/src/frontend/world_render.cpp b/src/frontend/world_render.cpp
index 63545d43..4b3a1544 100644
--- a/src/frontend/world_render.cpp
+++ b/src/frontend/world_render.cpp
@@ -109,6 +109,8 @@ void WorldRenderer::draw(const GfxContext& pctx, Camera* camera, bool occlusion)
 	const Viewport& viewport = pctx.getViewport();
 	int displayWidth = viewport.getWidth();
 	int displayHeight = viewport.getHeight();
+
+	float skyLightMutliplier = level->skyLightMutliplier;
 	{
 		GfxContext ctx = pctx.sub();
 		ctx.depthTest(true);
@@ -117,6 +119,7 @@ void WorldRenderer::draw(const GfxContext& pctx, Camera* camera, bool occlusion)
 		EngineSettings& settings = engine->getSettings();
 
 		vec3 skyColor(0.7f, 0.81f, 1.0f);
+		skyColor *= skyLightMutliplier;
 
 		Window::setBgColor(skyColor);
 		Window::clear();
@@ -128,7 +131,7 @@ void WorldRenderer::draw(const GfxContext& pctx, Camera* camera, bool occlusion)
 		shader->uniformMatrix("u_proj", camera->getProjection());
 		shader->uniformMatrix("u_view", camera->getView());
 		shader->uniform1f("u_gamma", 1.6f);
-		shader->uniform3f("u_skyLightColor", 1.1f,1.1f,1.1f);
+		shader->uniform3f("u_skyLightColor", vec3(1.1f) * skyLightMutliplier);
 		shader->uniform3f("u_fogColor", skyColor);
 		shader->uniform1f("u_fogFactor", fogFactor);
 		shader->uniform1f("u_fogCurve", settings.graphics.fogCurve);
diff --git a/src/frontend/world_render.h b/src/frontend/world_render.h
index 00391159..53dfc9d3 100644
--- a/src/frontend/world_render.h
+++ b/src/frontend/world_render.h
@@ -32,7 +32,6 @@ class WorldRenderer {
 	bool drawChunk(size_t index, Camera* camera, Shader* shader, bool occlusion);
 	void drawChunks(Chunks* chunks, Camera* camera, Shader* shader, bool occlusion);
 public:
-
 	WorldRenderer(Engine* engine, Level* level, const ContentGfxCache* cache);
 	~WorldRenderer();
 
diff --git a/src/graphics/ImageData.cpp b/src/graphics/ImageData.cpp
index bc45df56..fbd56b86 100644
--- a/src/graphics/ImageData.cpp
+++ b/src/graphics/ImageData.cpp
@@ -68,7 +68,8 @@ void ImageData::flipY() {
                 for (uint x = 0; x < width; x++) {
                     for (uint c = 0; c < size; c++) {
                         ubyte temp = pixels[(y * width + x) * size + c];
-                        pixels[(y * width + x) * size + c] = pixels[((height-y-1) * width + x) * size + c];
+                        pixels[(y * width + x) * size + c] = 
+                               pixels[((height-y-1) * width + x) * size + c];
                         pixels[((height-y-1) * width + x) * size + c] = temp;
                     }
                 }
@@ -209,8 +210,8 @@ void ImageData::fixAlphaColor() {
     ubyte* pixels = static_cast<ubyte*>(data); 
 
     // Fixing black transparent pixels for Mip-Mapping
-    for (int ly = 0; ly < height-1; ly++) {
-        for (int lx = 0; lx < width-1; lx++) {
+    for (uint ly = 0; ly < height-1; ly++) {
+        for (uint lx = 0; lx < width-1; lx++) {
             if (pixels[((ly) * width + lx) * 4 + 3]) {
                 for (int c = 0; c < 3; c++) {
                     int val = pixels[((ly) + + lx) * 4 + c];
diff --git a/src/world/Level.h b/src/world/Level.h
index 084b9cd3..6e3e7cc4 100644
--- a/src/world/Level.h
+++ b/src/world/Level.h
@@ -31,6 +31,8 @@ public:
 	LevelEvents* events;
 	const EngineSettings& settings;
 
+	float skyLightMutliplier = 1.0f; // will be replaced with day-night cycle
+
 	Level(World* world, 
 		  const Content* content,
 	      Player* player,