do you mean the gradient map? if so there are a lot of coloring psds on tumblr and u can just search for them… i recommend using photopea, its free and just like photoshop but in your browser… kinda complicated but you’ll get the hang of it!!

okay figured it out linear-gradient(#000, #000) replace the hex code with a code of ur choice

ohhh. idk then lmk when you figure out gng. im gonna ask my oomfie for u