Beta calendar design feedback

Hello FB! Since I have already submitted the feedback form and can't seem to submit another one, I'm just writing here for a small suggestion.

I use my phone in the dark mode, and one thing I noticed about the beta calendar is that the color schemes are a bit too dark to clearly distinguish from the background.

There used to be more contrast before the change.

I'd really appreciate if the design becomes more friendly to the dark mode! Other than that I love the new calendar.