I've always wanted a chess client which provides dynamic heat maps to help you assess the board. Highlighted squares could represent threats from opponent piece

I've always wanted a chess client which provides dynamic heat maps to help you assess the board. Highlighted squares could represent threats from opponent pieces, colored by how many pieces that are attacking a square, or could attack a square within a move. Obviously, this isn't really needed, but I think a little AI help which guides you towards better understanding of the board would be nice.