对有一些强迫症的人来说一点点小问题就想着折腾。所以折腾了一会 theme-change 把结果 分享下。主要是解决自己的两点小问题：1、自动切换 theme 时也切换 banner,因为有的 banner 图片只适合在一种背景下显示。2、有时候会因为心情等原因想临时切换背景
banner 图片我放在 .doom.d/local/banner 中，自己设置列表中喜欢的文件名。
(use-package! theme-changer
:config
(defvar reverse-day nil
"whether reverse the day light for theme change")
(setq
theme-group1 '(doom-one-light
doom-acario-light
doom-nord-light
doom-opera-light
doom-solarized-light
doom-tomorrow-day) ; light theme
theme-group2 '(doom-one
doom-acario-dark
doom-city-lights
doom-challenger-deep
doom-dracula
doom-gruvbox
doom-Iosvkem
doom-vibrant
doom-molokai
doom-moonlight
doom-oceanic-next
doom-outrun-electric
doom-peacock
doom-spacegrey
doom-snazzy
doom-wilmersdorf) ; dark theme
banner-group1 '(
"KEC_Light_BK_Small.png"
"ue-green-sm.png"
"ue-blue-sm.png"
"ue-orange-sm.png"
"ue-pink-sm.png"
"ue-red-sm.png"
"ue-dark-sm.png"
) ; banner for light theme
banner-group2 '("caffee.png"
"KEC_Dark_BK_Small.png"
"ue-blue-sm.png"
"ue-green-sm.png"
"ue-pink-sm.png"
"ue-red-sm.png"
"ue-light-sm.png"
"ue-colorful-sm.png"
) ; banner for dark theme
)
(defun my-change-theme ()
(if reverse-day
(change-theme theme-group2 theme-group1)
(change-theme theme-group1 theme-group2)
))
(defun my-toggle-theme()
(interactive)
(setq reverse-day (not reverse-day))
(cancel-function-timers #'change-theme)
(my-change-theme)
)
;; dashboard banner image
(defun my-set-banner (&rest r)
(setq fancy-splash-image
(let* ((banners (if reverse-day banner-group2 banner-group1))
(banner (elt banners (random (length banners))))
(banner-file (expand-file-name (concat "local/banner/" banner) doom-private-dir)))
banner-file))
)
(advice-add 'change-theme :before #'my-set-banner)
(my-change-theme)
)