Invert colors within screen share

I have an accessibility question. Is there a way to invert the colors of just the screen share portion of the meeting window (of what someone else is sharing)?

Being of low vision I'm ultra sensitive to the traditional white backgrounds of apps. Having everything on my computer in dark mode works well for me, but when on a meeting I'm blinded by someone who shares their screen, and I'm unable to follow along or help them as a result. Being able to invert just the shared portion of a meeting would be life changing.

Thanks for any tips or suggestions!