nonpremultipled index=0, red=71, green=112, blue=76 index=1, red=181, green=181, blue=182 index=2, red=110, green=111, blue=111 index=3, red=186, green=186, blue=187 index=4, red=159, green=159, bl......blue=76, alpha=0 index=1, red=181, green=181, blue=182, alpha=11 index=2...blue=111, alpha=60 index=3, red=186, green=186, blue=187, alpha=244...