Live Game scores popup not dark

[Alfie94]

Userstyle: Search
Stylus version: 1.5.2
Userstyle version: 0.7.29
Browser version: 72.0.3626.119
Steps to reach the problem:

1. Search ence vs navi (probably has to be a game that is currently live)
2. Click the game scores

Expected Behavior: Popup window is dark mode and text is legible
Observed Behavior: Popup window has white background and text is also light so its illegible
URL: https://www.google.com/search?q=ence+vs+navi
Customized values that cause the problem: None
Saved page: ence vs navi - Google Search.zip
Screenshot: