I've noticed in some cases an image does get tagged with a char / copyright but the tags were not prefixed so they have not become color-coordinated.
I'm kinda manually going through (the hover option for tags is helpful) but was wondering if as a time saver anyone knew how to encode a search where it would only show images lacking a "character:X" or "series:y" type of tag.
I know you can limit searches by using a minus sign preceding a tag, but I'm trying to exclude an entire classification of tag instead, basically looking for places where the tags need to be improved.