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I'm here to ask why are some tags grey and some are light grey?
See in this photo:
is light grey, but is dark grey. Why is that?
Edit: it does it here with the tags of this question
Meta sites have compulsory tags, of at least one you need to have.
bug and discussion are compulsory. tags is not.
There's a third type of tag called a status tag that only mods and staff can use that's red.