There was an old thread (forum #15520) and it seems that [almost] everyone agreed on use of shaded_face. But there's also a shadow_over_eyes tag. Only the former has a wiki entry so I'm unsure...
Are there any differences between these two tags? And if there aren't, should one of the tags be abandoned in favor of another one?
BUMP: Uh, anyone?..
Updated by jxh2154