This library attempts to simplify removal of all frame (window) decorations as a global minor mode.

Install it from Melpa or clone and install manually, then simply M-x decor-mode.

Automatical usage on start can be enabled in your config file with:

(use-package decor
  :ensure t
  :config (decor-mode))

Alternatively you can use one of these public functions:

• decor-toggle-single-frame(win-id on)
• decor-toggle-all-frames(on)
• decor-all-frames-on()
• decor-all-frames-off()

Documentation on those can be found via C-h f <name>.