Steps to replicate the issue (include links if applicable):
What happens?:
- The image has a transparent background. That's why dark parts of the logo cannot be seen because of the black-colored background.
What should have happened instead?:
- Dark parts should be seen in night mode, too. Maybe by adding a default background for images if the have a transparent background or adding an opportunity to manually add a night-mode image background.
Software version (on Special:Version page; skip for WMF-hosted wikis like Wikipedia):
Other information (browser name/version, screenshots, etc.):