thx this helped!
but one thing is i don’t know where my opponent played his/her last move. I played a couple games with 1 color go, and i think the last marked stone is marked with a black circle inside black stones. I had to ask the other player a couple times where they went. not complaining but its a bit too hard when you dont know where they go.
I’ve never tried one colour go but I see your point. Regardless of custom colours, the circle that indicates the last move is the colour of the other side so…
It’s not a perfect solution but you could play with analysis switched on. You could see which was the last move by just pressing ◄. If you don’t wish to use analysis in the game you can simply agree with your opponent not to do so. One Colour Go is already played on an honour basis.