Thank you for these recent changes!
Some ideas to improve the color labels in the future (you might already have these on your to do list
):
Black text: The text color for all columns but the filename in list view used to be black but now it is a lighter gray with anti-aliasing to white. This makes it less legible and if you could make the text black it would definitely improbe.
The anti-aliasing to white is also present in the filename column.

Remove old labels: Would it be possible to have the option in the settings to automatically disable older color labels? So a file or folder never has two color labels.
Custom colors: It would be great if custom color labels could be created in the settings. Let a user name it and input a color code (hex/rgb/sliders).