WPMU Dev Plugins Affecting WP Admin Styles

This is a minor bug, but it appears that with a recent update both Hummingbird and Smush affect the styles of the admin panel slightly. There could be other plugins in the toolkit that do this, but I have noticed it specifically with the above.
The images with the update notice come from a different site that has Smush, but not the Dashboard. The other two images have a banner across the top that was created with the Ultimate Branding plugin. That site has both Hummingbird and Smush installed.