Hard to read Calendar details in widget

[GammaSQ]

Calendar widget presents event details in hard to read font-color

To Reproduce
Steps to reproduce the behavior:

1. set some calendar event with title and details (I have mostly locations, but descriptions show the same behaviour)
2. Add a MyBrain calendar widget to the homescreen
3. The title of the event is white on dark, clearly visible. Description is black on dark, hard to make out.

[I'm using Lawnchair launcher in case that matters.]

Expected behavior
A clear and concise description of what you expected to happen.
Font-Color of widget is either fixed to a sensible value (white) or, if at all theme-dependent, the setting is made clear.

Smartphone (please complete the following information):

• Device: Fairphone 4
• OS: Android 11
• App Version 1.0.1 (f-droid)

[ghost]

Make widget transparent, while you're at it. Please.