I'm using the dark theme overall. The issue arose today in replying to an email. The reply window comes up with a black background and black text which I can't see. When I click on the text/background color box I get a window to change it, click on that and get a color wheel. I select white for text or background, click okay, but nothing changes in the reply window - the background and text are still black. I've tried multiple times with the same result - any suggestions, please and thanks?