bug#15740: [External] : Re: bug#15740: 24.3.50; enabling & disabling custom themes is slow

[Drew Adams]

> > Yes, the problem is still there.  (Tested, e.g.,
> > with the latest Emacs release, 27.2.)
> >
> > See the recipe from emacs -Q in...
> 
> "Multiple simultaneous solution representations in a 
> population based evolutionary algorithm"?

Oops - copy+paste error.  This is the URL (for msg #11):

https://debbugs.gnu.org/cgi/bugreport.cgi?bug=15740#11

> Are you sure that this isn't a problem with doremi?
> Do you see the problem using `M-x customize-themes'?

Yes - no problem with doremi.  `doremi-custom-themes+'
just changes to the next theme when you hit a key
(e.g. <up>).

And with non-nil option `doremi-custom-themes-accumulate-flag'
it does what Emacs does by default when moving to another
theme: it doesn't cancel the previous theme(s); it just
adds (enables) the new one also (uses `enable-theme').

None of this has anything to do with `customize-themes'.

(The comparison is to use `doremi-color-themes+', which
cycles among _color_ themes.  The code is parallel.)