Purmids - symbol of evil
As we can see, within new Canon purmids are essentially the universal symbols of evil.
The Sith temple on Malachor is in the shape of a purmid - it remains a purmid even when "closed" and even when the roof is opened.
Not only that, but even the Sith holocron is shaped like a purmid - and it's implied to be the ultimate Sith knowledge source, pretty much as the temple-superweapon that is implied to be Sith technology at its finest.
Then even the Sith symbol looks like a purmid seen from the sky, with the black marks being basically the edges of the walls of the purmid in question.
So, are the purmids the supreme symbol of all evil in the galaxy? Or just the Dark Side's symbol?