Greasy Fork is available in English.
An optional supplement to the "GitHub Red Issues" script/style.
Du vil måske også kunne lide GitHub Red Issues
This style overwrites the task icons for issue reports.
I don't find the red circle for open or rejected applications helpful.
The userCSS/userJS may be losing the battle against the native add-on in MV3 (or MV2 as someone makes a fork while maintaining the author's license) - as long as Stylus and Tampermokey/Violentmonkey/Greasemonkey inject a different CSS method into the page.
The released style may have similar problems with CSS4 and acting as a userScript like base.