On 03/31/2016 02:38 PM, Stefan Monnier wrote: > Tho I'd personally recommend that if you don't want to use the Custom > UI, then don't use Custom from Elisp either, and just use straight: > > (setq minibuffer-prompt-properties > (append ... minibuffer-prompt-properties)) > (add-hook 'minibuffer-setup-hook #'cursor-sensor-mode) Is that right? That will work in this case, but in general isn't it a bad idea to setq a defcustom, given that it won't run its :set form?