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Emacs Themes

dark

Au Mysterium Theme

Dark Halloween theme of a haunted mansion and the old painted van parked outside it, with teal bodywork, violet, orange, dry green and a gold tag on black, damped for photophobic and neurodivergent viewers.

Screenshots generated on: November 7, 2026

c++-mode

Au Mysterium Theme in c++-mode

css-mode

Au Mysterium Theme in css-mode

dired

Au Mysterium Theme in dired

emacs-lisp-mode

Au Mysterium Theme in emacs-lisp-mode

eshell

Au Mysterium Theme in eshell

fundamental-mode/selection

Au Mysterium Theme in fundamental-mode

html-mode

Au Mysterium Theme in html-mode

javascript-mode

Au Mysterium Theme in javascript-mode

org-mode

Au Mysterium Theme in org-mode

python-mode

Au Mysterium Theme in python-mode

sh-mode

Au Mysterium Theme in sh-mode

sql-mode

Au Mysterium Theme in sql-mode

term

Au Mysterium Theme in term

text-mode

Au Mysterium Theme in text-mode