Kitty: Feature request: fast theme switcher

[askobara]

For example for cases of switching between light and dark variants

[Luflosi]

On macOS it could be possible to implement switching themes with the macOS dark mode setting.

[Luflosi]

Notice that kitty already allows switching themes with the remote control protocol. See https://github.com/dexpota/kitty-themes/blob/master/README.md#previews for a script that makes this easy.

[kovidgoyal]

I dont know what you mean by a fast theme switcher. Changing colors in kitty is instantaneous and if you enable remote control you can change colors in any arbitrary set fo kitty windows. https://sw.kovidgoyal.net/kitty/faq.html#how-do-i-change-the-colors-in-a-running-kitty-instance

[ismay]

@askobara It's quite easy to implement this yourself with kitty's set-colors. I've implemented it for fish shell here as a theme command:

https://github.com/ismay/dotfiles/blob/2f281e5fc7f16f5aad351c2040d64ff3d288092b/config/fish/functions/theme.fish

#!/usr/bin/env fish

function theme -d "Change kitty theme" -a theme_name
  # Do nothing if there is no theme specified
  if [ -z "$theme_name" ]
    return
  end

  # Path to search for theme conf files
  set -l theme_folder (command realpath ~/.dotfiles/themes/build)

  # Full path to theme
  set -l theme_path "$theme_folder/$theme_name.conf"

  # If theme exists, change theme
  if [ -e "$theme_path" ]
    # Change for current session
    kitty @ set-colors --all --configured $theme_path
  end
end

And it even autocompletes the themes I have available:

https://github.com/ismay/dotfiles/blob/2f281e5fc7f16f5aad351c2040d64ff3d288092b/config/fish/completions/theme.fish

#!/usr/bin/env fish

function theme_complete -d "Complete the theme command"
  # Only completes first argument
  if __fish_is_first_arg > /dev/null
    # Path to search for theme conf files
    set -l theme_folder (command realpath ~/.dotfiles/themes/build)

    for theme in $theme_folder/*.conf
      set -l theme_name (basename $theme .conf)
      echo $theme_name
    end
  end
end

complete -c theme -fk -a "(theme_complete)"

This is of course geared to my setup, but it should be very doable to adapt this your shell/workflow of choice.