Revealed during QA in T365509#9965955
Steps to replicate the issue (include links if applicable):
- Visit https://en.m.wikipedia.beta.wmflabs.org/w/index.php?title=Talk:Polar_bear&minervanightmode=1
- Check color contrast on page
What happens?:
{F56317349}
What should have happened instead?:
The background is using var(--color-progressive,#36c) rather than var(--background-color-progressive,#36c)
Software version (on Special:Version page; skip for WMF-hosted wikis like Wikipedia):
Other information (browser name/version, screenshots, etc.):
It is not a problem on light theme
https://en.m.wikipedia.beta.wmflabs.org/wiki/Talk:Polar_bear?minervanightmode=0