I think this is a very common problem, but I cannot find a suitable solution for me. As you all know, WP supports a dark and a light theme. The user can change the theme and the
The Coding 4 Fun control toolkit includes a round button that mimics the application bar buttons, including updating the foreground color depending on the theme. The code is open source, so perhaps you might find an answer in there. Or, as a hack, you could use the RoundButton control, turn off the border, and not provide a Click
event.