This font is called ExtraOrnamental and was used on the band’s official logo during “A Fever You Can’t Sweat Out”. It only works with capital letters and numbers, there’s no punctuation.

This font is called Nemo and was the lettering of choice used on Ryan’s wrists tattoos.

This font is called Monbijoux and some characters were used on the band’s official logo during “Pretty. Odd.”, as well as in the album’s booklet.