For some reason the text in my GH window is white again… Must have been some bug, that was resolved with restarting or sth. So this particular point is resolved for me.
I agree with @diff-arch with some aspects of readability and style of Dark Mode in Grasshopper, I also wish it GH would automatically change canvas colors matching to Dark Mode, when macOS activates it in the evening - already posted that wish here.
However there are more urgent and important improvements for Rhino for Mac and GH that I would love to see than this one, so I can live with it.
Cheers