Looks good! However, have you asked the said keyset designers of the sets (Oblivion, Dualshot, Islander and Mr. Sleeves) before you launch this IC?
In conclusion, I didn't ask them.
If I had shown them my design as you said, it would have been a respectful and cooperative relationship with them.
But they also borrowed colors from PlayStation, Nintendo, Coding Themes, etc.
Therefore, I don't think that I have to get approval from all the above companies in order to proceed with this design and then get approval from all of the above designers.
In addition, most of their products have already finished GB, so I don't think my products affect the sales revenue of that designer.
Also, I don't think that some colors can be owned by a specific person, and one of the reasons why I do these desk mats is to make a variety of desk mats that match keycaps to broaden users' options.
I hope my answer can clear your question