I have a style that just has the background-color style set to a colour, and this style is applied to e.g.
The background colour style doesn’t do anything. However if I change the Perspective style to animated and set the two keyframes to the same thing, then the alarm rows show with the correct background colour
This (unanimated) doesn’t change the background colour, font size is changed (testing if any style works):
This does change the background colour: