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stimmung-themes.el
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stimmung-themes.el
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;;; stimmung-themes.el --- Themes tuned to inner harmonies -*- lexical-binding: t -*-
;; Copyright © 2019
;; Author: Love Lagerkvist
;; URL: https://github.com/motform/stimmung-themes
;; Package-Requires: ((emacs "25"))
;; Created: 2019-12-20
;; Version: 2021-03-20
;; Keywords: faces
;; This file is NOT part of GNU Emacs.
;;; License:
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 3, or (at your option)
;; any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; For a full copy of the GNU General Public License
;; see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; Stimmung (dark and light) is a pair of monochrome Emacs themes
;; with minimal syntax highlighting. They are inspired by Tonsky's
;; Alabaster theme (https://github.com/tonsky/sublime-scheme-alabaster),
;; following the maxim that a theme that highlights everything
;; paradoxically highlights nothing. Text backgrounds (comments,
;; strings and constants) and font variations (definitions) are used
;; as alternatives to text colors, ensuring a harmonious reading
;; experience. Use `stimmung-themes-dark-highlight-color' and
;; `stimmung-themes-light-highlight-color' to customize the highlight.
;;
;; Screenshots are available at: https://github.com/motform/stimmung-themes
;;; Code:
;;; Theme loading/toggle inspired/sourced from the fantastic `protesilaos/modus-themes'
(defgroup stimmung-themes nil
"Stimmung settings.
You have to re-load the theme for these changes to take effect."
:group 'faces
:prefix "stimmung-theme-"
:link '(url-link "https://github.com/motform/stimmung-themes"))
;;; Highlight colors
(defcustom stimmung-themes-dark-highlight-color "#40382b" ; I dub this shade "Japanese gravy"
"The dark theme color for highlights, the only non-monochrome color in code."
:type 'string
:group 'stimmung-themes)
(defcustom stimmung-themes-dark-highlight-color-foreground "bisque1"
"The dark theme color for highlights that are defined as 'foreground.
There are no 'foreground colors active by default."
:type 'string
:group 'stimmung-themes)
(defcustom stimmung-themes-light-highlight-color "cornsilk1"
"The light theme color for highlights, the only non-monochrome color in code."
:type 'string
:group 'stimmung-themes)
(defcustom stimmung-themes-light-highlight-color-foreground "dark goldenrod"
"The light theme color for highlights that are defined as 'foreground.
There are no 'foreground colors active by default."
:type 'string
:group 'stimmung-themes)
;;; font-lock faces
(defmacro stimmung-themes--font-lock-face (name default)
"Register the custom font-lock-face for NAME with value DEFAULT."
(let ((custom-name (intern (concat "stimmung-themes-" name))))
`(defcustom ,custom-name ,default
,(format "The type of highlighting used for %s." name)
:type 'symbol
:group 'stimmung-themes
:options '('background 'foreground 'none))))
(stimmung-themes--font-lock-face "builtin" 'background)
(stimmung-themes--font-lock-face "comment" 'background)
(stimmung-themes--font-lock-face "doc" 'background)
(stimmung-themes--font-lock-face "constant" 'background)
(stimmung-themes--font-lock-face "string" 'background)
(stimmung-themes--font-lock-face "markup" 'background)
(stimmung-themes--font-lock-face "type" 'none)
(stimmung-themes--font-lock-face "function-name" 'none)
(stimmung-themes--font-lock-face "keyword" 'none)
(stimmung-themes--font-lock-face "variable-name" 'none)
(stimmung-themes--font-lock-face "preprocessor" 'none)
(stimmung-themes--font-lock-face "regex" 'none)
;;;; Interactive functions
;;;###autoload
(defun stimmung-themes-load-dark ()
"Load `stimmung-dark' and disable `stimmung-light'."
(interactive)
(disable-theme 'stimmung-themes-light)
(load-theme 'stimmung-themes-dark t))
;;;###autoload
(defun stimmung-themes-load-light ()
"Load `stimmung-light' and disable `stimmung-dark'."
(interactive)
(disable-theme 'stimmung-themes-dark)
(load-theme 'stimmung-themes-light t))
;;;###autoload
(defun stimmung-themes--toggle-prompt ()
"Helper for `stimmung-themes-toggle'."
(let ((theme (intern (completing-read "Load Stimmung theme: "
'(stimmung-themes-light stimmung-themes-dark) nil t))))
(mapc #'disable-theme custom-enabled-themes) ; make sure to disable any non-stimmung themes to ignore accidental face-overlap
(pcase theme
('stimmung-themes-light (stimmung-themes-load-light))
('stimmung-themes-dark (stimmung-themes-load-dark)))))
;;;###autoload
(defun stimmung-themes-toggle ()
"Toggle between the dark and light version of `stimmung-themes'.
Prompt the user for which to pick in case none is enabled.
Currently assumes the themes is loaded, which might be an issue.
Inspired by stimmung-themes."
(interactive)
(pcase (car custom-enabled-themes)
('stimmung-themes-light (stimmung-themes-load-dark))
('stimmung-themes-dark (stimmung-themes-load-light))
(_ (stimmung-themes--toggle-prompt))))
(provide 'stimmung-themes)
;; Local Variables:
;; no-byte-compile: t
;; End:
;;; stimmung-themes.el ends here