Can someone help me get rid of these white lines?

[LukasA]

I'm making a background for a youtube channel and I forgot to put the lines in a separate layer than the background so I deleted all the white and now I'm left with white-gray lines between the black lines and coloring.
Is there a way I get rid of them with out going through and coloring all of the white lines out?

edit; forgot picture
NEVERMIND I figured it out

[Arshes Nei]