I've found a bug with the legacy themes and color changes. I'm trying the 21.1 beta in a VM, and when using the Mint-Y-Legacy theme, if I try to change the color of a folder, that folder reverts back to the new yellow Mint-Y theme instead of staying with the Mint-Y-Legacy theme but with the selected color. This doesn't happen with Mint-X -- only Mint-Y-Legacy.
You can ignore this. It was already fixed, but because the Mint servers were running a bit slow, I had switched to a mirror after installing. I guess the fix hadn't hit the mirror yet.
I've found a bug with the legacy themes and color changes. I'm trying the 21.1 beta in a VM, and when using the Mint-Y-Legacy theme, if I try to change the color of a folder, that folder reverts back to the new yellow Mint-Y theme instead of staying with the Mint-Y-Legacy theme but with the selected color. This doesn't happen with Mint-X -- only Mint-Y-Legacy.