That's a perfect assessment
I always thought Joker's suit reflected something to do with entertainment. But it has to do with royal prestige. ..in the most absurd fashion
But that's his ways. Everything he does or says is a statement to the joke that he thinks life is.
Matt would be great. He has this unusual look and frame. Almost freakishly assexual. Which is Joker too.
And his performance as the Doctor shows the manic potential he has for a role like Joker.