dark high contrast not possible to read

[dknn]

Description

Some text is impossible to read
Best way to see it.
Have GitHub theme installed.
Go and install GitHub dark high contrast
Go back to extensions search for GitHub theme
Now under install there are unreadable text.

Screenshots attached. But really easy to reproduce.

Steps to reproduce

Have GitHub theme installed.
Go and install GitHub dark high contrast
Go back to extensions search for GitHub theme
Now under install there are unreadable text.

Version

v6.3.4

Theme

GitHub Dark High Contrast

[StarfallProjects]

Came here to report the same issue.