Browser games have trouble with scrolling & screen sizes, that is a known issue which I’m looking into.
I’m not sure what you mean by contrast/brightness settings, what game are you talking about?
Hybrid: i can now scroll! there is a problem with icons though, but it seems like it's related to twine?
The good people: nothing changed after update, background/contrast still makes it unreadable (it doesn't happen on my laptop).