There are a number of set icons that seem to be missing. I checked the Graphics/Sets dir and zip but I did not see them.

This is not an exhaustive list:
Commander Legends
Strixhaven
Strixhaven Mystical Archive
Timespiral Remastered
Zendikar Rising Commander
Battle Royale
Game Night 2019
Commander 2021
Prerelease Promos (I could understand a generic image here)
Kaldheim
Kaldheim Commander
Kaldheim Promos

Thank you.