private void initSkyboxColor()
{
Color skyboxColor = new Color();
skyboxColor.r = levelColor.r;
skyboxColor.g = levelColor.g;
skyboxColor.b = levelColor.b;
skyboxColor.a = 128.0f;
// skybox.material is a shared material and we don't want to modify the prefab, so just clone it
GameObject camera = GameObject.FindGameObjectWithTag("MainCamera");
Skybox originalSkybox = camera.GetComponent <Skybox> ();
Material levelSkyboxMaterial = Material.Instantiate(originalSkybox.material);
levelSkyboxMaterial.SetColor("_Tint", skyboxColor);
Skybox.Destroy(originalSkybox);
Skybox levelSkybox = camera.AddComponent <Skybox>();
levelSkybox.material = levelSkyboxMaterial;
}