public static float normalizeGl(float val, float newFromVal, float newToVal) {
		return normalizeGl(val, -1, 1, newFromVal, newToVal);
	}
Convert color into OpenGL color format.
@param color some color
@return array of floats: [red, green, blue, alpha]
library/src/main/java/com/cleveroad/audiovisualization/Utils.java