Dark Mode and disappearing text in RW

How do you set the text color so that it automatically switches along with a mode switch? I’m talking about the appearance in RW. My published files are fine because the theme does not switch to a dark background.

Most of my text adjusts to mode changing just fine. I have some black text that looks completely normal in light mode but disappears (stays black) in dark mode.

I apparently also have some text with a white background assigned. This pops out in dark mode.

I cannot seem to find any place to make adjustments to make my text compatible with mode switching.