Hello @SuperOvni ,
Thank you very much for your suggestion. Your suggestion has been communicated to the developer and the development project manager is reviewing the content. After reviewing your suggestions, we will apply them to the official version if your proposal matches our concept. We appreciate your contribution to the beta program.
One UI Beta Team
was this issue solved?....I am going through exactly the same issue on my S23U..the same grey background colour of the task changer but ONLY when I use 3rd party launchers (in my case Nova). I have no issue with the stock launcher.