Seethru: Easily change Emacs' frame transparency The use of seethru is very simple. To set the transparency to an absolute value: (seethru 55) To set the transparency relative to its current value: (seethru-relative -10) This is usually used to bind to a key, like so: (global-set-key (kbd "") (lambda () (seethru-relative -10))) To set up recommended keybindings, which are `C-c 8' to reduce transparency and `C-c 9' to increase it, as well as shifted keybinds which do the same, but slower: (seethru-recommended-keybinds) To set up mouse bindings, which are wheel-up to increase transparency and wheel-down to decrease it: (seethru-mouse-bindings) You can optionally change the modifier used by either `seethru-recommended-keybinds' or `seethru-mouse-bindings' simply by passing an argument in, for example: (seethru-recommended-keybinds "C-x") ;; "C-x 8" and "C-x 9" (seethru-mouse-bindings "C") ;; hold control while wheeling ;; mouse to change transparency