I saw Jason (@RVT) tweet about this yesterday and I thought this is right up the Dept. of Subtle alley.

I've been telling people for years that the brackets meant "these belong to the Revit system" but then there were several other rogue line styles that came along without brackets. I had to explain that any line styles you couldn't delete is also a system line styles...

Consider the Dept. of Subtle tickled.

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