Is there anyway I can put <mark> Behind text instead of overlaying?

It’s a feature that I have wanted to use in my last 2 projects but I don’t understand why it’s overlayed on text making it very hard to see the text beneath, especially with white text.

Is there something as simple as a line of code in the textmeshpro files I can modify that underlays it rather than overlays it?

Also interested in finding this out - it does not work how I expected. In this 2021 post it is indicated that it will be ‘addressed in the future’: Background behind Text Lines?