I have changed the background colour in Style properties: Notices (panel) but it is not actually changing the background. Is there somewhere else I do this?
Found the problem, it only works after you click reset before clicking Update Style Properties. Then after that clicking on Update Style Pproperties works without having to click on reset first. Seems a bit odd but I've got it working.
That's what I thought, but it did not take until I did a reset. I presume it is a bug then as after having done the reset once, it behaves as expected from then onwards.