public void setColorSpace(ColorSpace colorSpace) {
        this.colorSpace = colorSpace;
    }
image loader is responsible for setting this attribute based on the color
space in which the image has been encoded with. In the majority of cases,
this flag will be set to sRGB by default since many image formats do not 
contain any color space information and the most frequently used colors 
space is sRGB

The material loader may override this attribute to Linear if it determines that
such conversion must not be performed, for example, when loading normal
maps.

@param colorSpace Set to sRGB to enable srgb -&gt; linear 
conversion, Linear otherwise.

@see Renderer#setLinearizeSrgbImages(boolean)
jme3-core/src/main/java/com/jme3/texture/Image.java