Hi,
I just purchased the program, I wanted to give some early feedback. I think it's a great and interesting tool, but it seems a bit buggy, that's unfortunate. When I study positions and play variations everything seems to work as intended but then (randomly but quite frequently) it suddenly stops working. Normally after each move it should switch to show the best moves for the other side but sometimes this turn switch doesn't happen and it continues to show recommended moves for the side that just played a move. Hope you can have a look at this. It's a bit frustrating to have to start analysis over again from the start when you're deep into some variation.
Otherwise, a minor feature request: I'd like to be able to toggle somehow to see the black and white squares of the board. I realize it might make the coloring for the other features a bit more difficult, but there should exist a solution somehow.
Anyway, thanks for the work so far! I'm a bit of a fellow traveller, working on an analysis tool for the game of Go ;) Keep it up!