Bug description

Some characters in the terminal have an odd font-family/font-color and a black background around them like SOCKET_TIMEOUT or /home/gitpod/.npm/_logs/2022-03-23T09_59_51_876Z-debug.log

Steps to reproduce

1. Use Firefox
2. Have an invalid package json, like {
3. Run npm ci
4. npm will fail and print the path to the debug log, the path looks weird like in the screenshot above

Workspace affected

No response

Expected behavior

Terminal characters look normal.

Example repository

No response

Anything else?

It seems to be related to underscores: When an underscore is before a letter, the letter is displayed weird.