If you're going to use stopwatch mode, use Turbo mode (shift plus click of green flag, you can change to turbo mode when project is running). If you don't, it flickers. Click the button in the middle to change mode. Pressing start stopwatch also resets the stopwatch.
I did it myself, although it took a while. ___________________ 1/30/2016: release after final bug check 1/30/2016: added button press sound 1/31/2016: updated stopwatch mode (now counts hundredth seconds)