I'm curious to find learn what red colored tags indicate, for example, status-completed. Does this mean the tag is marked for deletion? How does a tag become red in the first place?
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Because of context I think it is just to make them stand out as a tag to show that a feature request or bug report has been fixed so that the question has been completed. – Dave Humm Sep 5 '16 at 11:31
From How does Meta Stack Exchange work?
Moderator-only Tags
These tags can only be applied and removed by diamond moderators. They appear in red, not the usual gray, and confer a degree of official status.