| colors | An array of pixel colors. | 
| face | Cubemap face to set pixels for. | 
| arrayElement | Array element index to set pixels for. | 
| miplevel | Mipmap level to set pixels for. | 
Set pixel colors for a single array slice/face.
This function takes a color array and changes the pixel colors of the whole
mip level of a single cubemap face. Call Apply to actually upload the changed
pixels to the graphics card.
See Also: SetPixels32, GetPixels, Texture2D.SetPixels, Graphics.CopyTexture.