Light mode comment box in GitHub's dark mode

I'm trying the Gitcasso extension on Brave 1.83.112 on Ubuntu 24.04, and I found that the comment box is in the light mode, if GitHub is in the dark mode.

<img width="974" height="660" alt="Comment box in the light mode (caused by Gitcasso), when GitHub is in the dark mode." src="https://github.com/user-attachments/assets/ff55fcef-09a1-4921-9eea-a11548a17e1e" />