Image check fail

[itlboy]

Two different images but equal results (image 1 has large black bands on the left and right):

image 1: https://img.cloudimgs.net/rx/3800x4600,ofmt_png,c_2/s2/img/p/128890517/8312c6d0ed5201e9f5e426e0e920f06da482b22c.png

image2: https://img.cloudimgs.net/rx/3800x4600,ofmt_png,c_2/s2/img/p/128890517/8312c6d0ed5201e9f5e426e0e920f06da482b22c.png?nocache=4

[KuznetsovRoman]

Thanks for the report "looks-same" compares colors with CIEDE2000: https://en.wikipedia.org/wiki/Color_difference#CIEDE2000 CIDEDE is designed for LAB color space, which has no alpha channel, so looks-same does not think difference in alpha-channel is a real difference. I have no idea, what we can do with it. Color of transparent pixels depend on background color, so CIEDE2000 of colors with alpha channel is undefined