Categories in subfolders

[Davide78]

Hi, to catalog emails I use the colors of the Categories to which I have associated a meaning.
In the Inbox folder, if necessary, I apply one or more Categories (which may change over time).
I move the emails into the folders I create in the archive, grouping them by topic.
Then when I go to review archived emails, also to modify the applied categories, I don't have the same list of categories that I created in the Inbox, why?


Is it possible to have a single set of colors/meanings for Categories?

Thank you in advance