How do I change the text color for the Galaxy calendar?

Upon the last android update, I discovered that my galaxy calendar was messed up. It used to have a black background and white text (I THINK..maybe it was a white background and black text). After the update, however, it has a white background and white text. I am not able to see most of the words on the app, not even much of the text in the settings for the calendar to be able to see how to make changes. What can I do to fix this?? Thanks in advance!

I am having the same problem! and since I cannot change the text color on Samsung themes independently from changing my ENTIRE theme setup I can't figure out how to switch it. Currently my calendar, contacts, pull down quick settings, and some settings menus.

The only solution I've found far... got to Accessability > Visability Enhancements > High Contrast Fonts

The problem of color still isn't resolved...