Colour related problem

Hi All,
My problem is: I have some video footage (a figure dancing across the screen - from left to right). I have green screened the background out & now want to reduce the isolated figure (in full colour on a transparent Alpha background) to a black outline. The colour controls in Resolve are pretty complex & I have been experimenting quite a lot before I decided to seek advice on the Forum, but any advice on reducing my footage (if at all possible) to a black outline would be most gratefully received.
Many thanks in advance.
My problem is: I have some video footage (a figure dancing across the screen - from left to right). I have green screened the background out & now want to reduce the isolated figure (in full colour on a transparent Alpha background) to a black outline. The colour controls in Resolve are pretty complex & I have been experimenting quite a lot before I decided to seek advice on the Forum, but any advice on reducing my footage (if at all possible) to a black outline would be most gratefully received.
Many thanks in advance.