Steps to replicate the issue (include links if applicable):
- https://en.wikipedia.beta.wmflabs.org/w/index.php?title=Polar_bear&action=edit&vectornightmode=1
- Click the "TemplateWizard" button
- Search of "site inactive"
What happens?:
A warning is shown that is not night mode compatible
Now make some edits
Try to close the dialog
You will get a white wash of the dialog
Software version (on Special:Version page; skip for WMF-hosted wikis like Wikipedia):
Other information (browser name/version, screenshots, etc.):