Can you try:
sudo apt remove folder-color
# and then
gnome-extensions disable ding@rastersoft.com
# if it's not found, it's okay.
If it still doesn't work, you can switch to another file manager such as Dolphin:
https://forum.zorin.com/t/hidden-folders-files-must-be-different-color-or-transparent/59145/39?u=sglbl