[QF-Test] Feature request: Inverted XOR and difference for image checks

Hello QF Test people,

I would like to ask for a feature request for the image comparison. The images in the run-log are good. Expected and actual images are very helpful and the controls to compare them side-by-side, under each other or just to switch them are great.

My only concern is with the xor and difference. If there are some obvious differences, then it is ok, but when there are just small differences, like small offsets or slight differences in colors, then it is not very pleasant to use.

I suggest to deduct the resulting pixel color from black. Then most of the diff picture will be white and the differences will be in the actual color of the difference.

But maybe it is just me, so I would like to ask for some feedback for this feature, if anyone is happy with it, please reply.

Best regards,

Marek Nedved