Two gray streaks have become part of my appearance, and I am not looking to cover them completely. My uncertainty is about contrast rather than coverage: would a darker background make the streaks too prominent? The examples I keep finding treat the whole head as one color and lose that particular detail. I found a possible starting point for hair color try on but I would like advice on representing mixed gray and colored sections in a useful comparison. Would you draw the sections on a photo rather than aim for a realistic edited result? I could mark which areas should remain untouched and compare only two possible depths around them. I understand that an edited picture cannot establish how dye will behave on my current hair. What would make this reference clear enough to discuss without obscuring the gray I want to retain?