"Manga" tag cleanup

I was thinking we probably need separate tags for images that are from a manga (e.g. post #445736, post #494181) and images that contain manga (e.g. post #600622, post #610697). Perhaps for the latter, the 0-post tag tankoubon could be revived? Or if that's too obscure of a word to be a good tag, then what about manga_(object)?

I'd suggest the following:
post #445736 - cover tag, leave manga off
post #494181 - manga tag, or comic tag
post #600622, post #610697 - manga_(object)