Premiere Pro Markers in Source Window - no way to change dark blue background behind black text?

Is it possible to change the color of the small rectangle surrounding the marker text in Premiere Pro's Source Window? What I don't understand is that Adobe chose the marker text to display as black text against a dark blue background which is not easy to see.

I like to choose white as my marker color because that makes the black text really stand out well, In this pic I uploaded, you can see how much easier it is to see black text on white instead of black text on dark blue. 

For some reason, you can choose from 8 different marker colors, but the marker text in the source window remains as black text on dark blue background. Is there some setting I'm missing or might not be aware of, that prevents the rectangular background around the marker text in the Source Window from matching the chosen color you set for the marker? Thank you in advance.