Re: Cannot run emacsclient in GUI

[Eli Zaretskii]

> From: Ramón Lorenzo Panadés-Barrueta
>  <rpana92@gmail.com>
> Date: Wed, 4 Nov 2020 10:41:31 +0100
> 
> (defun on-after-init ()
>   "Make transparent background only for terminal."
>   (if (display-graphic-p)
>       (progn (message "XWINDOW")
>          (set-face-background 'default "#292b2e"))
>     (progn (message "TERMINAL")
>        (set-face-background 'default "unspecified-bg"))))
> 
> (add-hook 'window-setup-hook 'on-after-init)
> 
> The above happens to work perfectly for emacs, but not for emacsclient,
> which yield the following error:
> 
> $ emacsclient -c
> Waiting for Emacs...
> *ERROR*: Undefined color: "unspecified-bg"
> 
> On the other hand emacsclient -nw -c, works as expected. Could anyone
> please give me some hints on how to solve this issue?

unspecified-bg is meaningless for GUI frames, that's why you get the
error.  Try this instead:

   (face-spec-reset-face 'default)