Hi George, it must have been a glitch or something because I had tried that by entering
color: red !important;
in the ‘style’ field and it did nothing, but having restarted AppStudio, it now works, so I have no idea why it didn’t work before.
Oh, and the background color is now also working, so must have been a glitch. Must remember to restart AppStudio and try again next time before reporting it here.