Optional mode-line prefix string to help identify mode-line-misc-info entry

[shipmints]

I set mine to

  (setq mode-line-debug-prefix "🐞")

PR incoming.

[tarsius]

That's cute, but IMO it's neither necessary nor sufficient.

Another user may wish to append something, or put something before and after the three characters, or capitalize them, or format them differently altogether. I don't want to cover one random variant nor make this super flexible.

You can achieve the same using a simple advice:

(define-advice mode-line-debug-control (:around (fn) ladybird)
  (cons "🐞" (funcall fn)))

[shipmints]

Alrighty, then. Advice taken and implemented.