the hell is that my dude!
colouring comics is very much a case-by-case basis. theres a (hopefully dying) marvel-dc industry standard - which consists of being complete ass imo, not worth learning. every comic and every art style deserves a different approach to colour.
myself, im in a lot of transition colour-wise. but my most basic approach is picking like 3-5 colours and slapping that shit down with various textured brushes and the pen for smooth application, and then adding some hard light and soft light layers for some contrast and a nice sexy glow. im very slapdash 'pretty and emotional > accurate' kinda colourist right now, although i havent always been.
some examples:
but also, heres the colours for another comic im working on:
now theres similarities in how i approach gradient, contrast, and blending, but this is veeery different right? mainly bc this was a linocut print, and the others were drawn in csp. this is just an example to show how colour can be done very differently depending on the demands of the project.