I ran a across a person selling comics on the web and he was very detailed in his descriptions of the condition of the comics for sale. I was familiar with most of the terms he used such a Marvel Chipping and spine roll, etc.
However he sometimes used the phrase "Cover has minor color touch-ups". This is the first time I have seen this refered to.
What is a color touch-up and how is it done? Is this considered a plus or a minus in grading a comic?