While I generally have moved to the new darker color scheme, I find that sometimes (depending on a number of factors), I like/prefer to work in the light color scheme.
It would be great if the color schemes could be assigned keyboard shortcut to toggle between themes, or if they could be saved in a Workspace.
I'm away from my machine right now. But I believe (on my Mac) it is any modifier key+function key+F1 or F2. Or something like that!
I just tried on Windows, it's ctrl+F1 and ctrl+F2.
Glad that helped.