I don't know what this means.
I think you mean not in background color, but instead in the background image area?
Or not in body style, but in style at the bottom of the table component props?
I read about CSS, but struggle to understand CSS syntax, structure, and targeting.
I thought that background color was part of a style class.
So I looked up the post again, and I see it was in the background image.
Time Series chart xtrace font - #4 by victordcq]
I really like this technique as the footprint is so small.
I kind of hope that in future versions we might just have a spot there designated for placing CSS and that there might be some help there to identify the objects we want to target to make it easier for myself.