In the past few years, Android phones have used Material You to generate a color palette to be used throughout the system. Usually, the system generates around a dozen options, but users have noticed some duplicates showing up.
Well, it does seem rather weird as a behavior. Of course, you’re not always going to get dozens of color theme options, and that’s understandable as some images or wallpapers don’t offer that many options for color pairing. However, showing duplicates instead could trick the user into thinking they’ve got more options than they do, and this may be annoying.
Hopefully, Google will reconsider and take another approach when the system is unable to get around a dozen color palette options. In my opinion, a better approach would be just to show nothing instead of filling up the space with duplicates. We’ll see whether or not Google changes its mind on this issue.