How to prevent emacs theme to load when running on terminal

Question

Hi I'm asking this question because this;[1]: Different theme for -nw (terminal) and few others didn't work for me. Allright, first of all I am not a programmer/devoloper, and I don't know lisp (thinking about learning it, but too busy). The problem I encountered is when I use emacs on gui with standart theme, it hurts my eyes, and the theme is just ugly. But when I use it on terminal (emacs -nw with no theme) it is beautiful because of the terminal theme/compton etc. Sometimes I have to use gui for a quick edit on desktop files or some other files, I'd like to ask you, how can I achive, to run emacs with some theme when on gui, and no theme on terminal.[2]: https://www.gnu.org/software/emacs/manual/html_node/elisp/Display-Feature-Testing.html I've seen this part of gnu/emacs manual, I understood what the "display-graphic-p" and "if" codes do but not sure how to use it, because I don't want any other theme to load on emacs when I use it on terminal.

Answer 1

It sounds like you want the following?

(when (display-graphic-p)
  (enable-theme 'solarized))

You can replace 'solarized with another theme.

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p.s. This when expression is equivalent to an if with a "do nothing" else clause:

(if (display-graphic-p)
    (enable-theme 'solarized)
  nil)

Emacs Lisp also lets you write a "one armed if":

(if (display-graphic-p)
    (enable-theme 'solarized))

But some people (like me) think it's clearer to use when -- to emphasize that the expression is "for effect" not "for result".