>>2642008if youre using photoshop try alt+ctrl+2 to isolate ur lineart :) I swear, it saves lives haha
You wont get the weird grey lines around the black or dark parts of the drawing.
with alt ctrl 2 u kinda like select all the white from the page, and u can erase it.
and if it still does the grey parts, select ur lineart and give it some black with any brush,
