Order of color labels?

[ronaldk 0]

I'm very curious what sorting rule determines the order of the tag color labels in the note list. It's not the same as the order of the tag list of the note, which I would expect. It's also not based solely on color (e.g first red, then yellow, etc.).

I use prefixes for certain types of tags (e.g. !tag1, !tag2, @tag100, @tag101) and I find it confusing that sometimes the color label associated with a @-tag comes first, and sometimes the label of a !-tag. Even notes with exactly the same tags, the color labels are sometimes sorted different. 

In this example, the tag !active always comes first in the tag list, but not in the color labels:

So it seems sorting is not consistent, but maybe I am missing something here. Anyone has an idea?