nonpremultipled index=0, red=241, green=241, blue=241 index=1, red=239, green=236, blue=237 index=2, red=241, green=241, blue=241 index=3, red=240, green=224, blue=204 index=4, red=195, green=218, ......nonpremultipled index=0, red=241, green=241, blue=241 index=1, red=239, green=236, blue=237 index=2, red=241, green=241, blue=241 index=3, red=240, green=224, blue=204 index=4, red=195, green=218, ...