create implication projected_inset -> inset
Despite the first having more entries than the latter, projected inset is simply a case in which an inset is displayed as part of the background, so it is a subset.
EDIT: This tag implication has been rejected because it was not approved within 60 days.
EDIT: The tag implication projected_inset -> inset (forum #139539) has been rejected by @DanbooruBot.
Updated by DanbooruBot