I bet most of you dont know how to use curves properly, so you dont bother at all. I will show you how to do it without making the colors look weird. 1. Make whatever stuff you want to make. 2. Layer>New Adjustment Layer>Curves 3. Make it look like the pictures below. You can change the curve, just make it look like that same gradual curve. You can make the curve both ways. If you make it like the first one, it gets lighter, and if you make it like the second, it gets darker.(Note: I made these pictures in like 10 seconds, so they are not the best.)
yeah but what are the arrows that are in the black/grey gradient thingie cause that's one thing i don't know actually
Yeah curve layers are really good for adding depth to your work. You should maybe post some before and after results to demonstrate it better, good job though.