fix sky shader

res/shaders/lib/sky.glsl

@@ -4,7 +4,7 @@
 #include <constants>
 
 vec3 pick_sky_color(samplerCube cubemap) {
-    vec3 skyLightColor = texture(cubemap, vec3(0.8f, 0.01f, 0.4f)).rgb;
+    vec3 skyLightColor = texture(cubemap, vec3(0.4f, 0.05f, 0.4f)).rgb;
     skyLightColor *= SKY_LIGHT_TINT;
     skyLightColor = min(vec3(1.0f), skyLightColor * SKY_LIGHT_MUL);
     skyLightColor = max(MIN_SKY_LIGHT, skyLightColor);