Origin of the band name Dark Tranquillity

Darth Jester

Member
Oct 5, 2011
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Does someone know, what's the story behind the name Dark Tranquillity?

Like many might know, DT was at least Septic Broiler first and the current name came a little later.
I'm interested, is there a story or a meaning behind it, or was it chosen just because it was "cool"?

and... who came up with the name?