So you are hung up on the look of the character then?maybe not a definitive version but definitely a classic version, wouldn't you agree?
different variations on the classic version are fine so long as you acknowledge there must first exist a tradition to subvert in the first place. the "traditional" joker looks like this:
that is the classic joker.
Because using your Captain America example...classic Cap looks like this:
Not like he got his suit from Halloween Adventure like he did in Avengers: