Sorry for the delayed response, but for the benefit of all users:
I believe, these issues are seen in Mac OS Catalina. Please confirm?
They can be resolved by upgrading to the latest public Bridge release.
48 votesFEATURE- RELEASED · AdminTeja Vepakomma (Senior Product Manager, Adobe Creative Cloud Bridge) responded
This feature has been released in Bridge v10.0. You can update Bridge to see this feature.
At the bottom of the Content Pane, there is an option to hide Tiles and ‘Show Thumbnails only’. If tiles are hidden, the image backdrop can be changed to pure black from Edit→Preferences→Interface→Image backdrop.
Thank you for your feedback on User Voice.
Senior Product Manager, Adobe Bridge
While this feature is still under development, if you want to hide the star ratings (Question #2 by original poster), please use "View Menu->Show Thumbnails only"
58 votesFEATURE- RELEASED · AdminTeja Vepakomma (Senior Product Manager, Adobe Creative Cloud Bridge) responded
This feature request has been implemented and released. Please upgrade to the latest version of Bridge to see this change.
Thank you for your feature request. AS the top voted feature, we have implemented this in the most recent version of Bridge. Please upgrade to see this change.
Sr. Product Manager, Bridge