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Use light/dark theme based on system preference (#17051)
Add a new default theme `auto`, which will automatically switch between `gitea` (light) and `arc-green` (dark) themes depending on the user's operating system settings. Closes: #8183
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8 changed files with 19 additions and 9 deletions
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@ -13,3 +13,4 @@ rules:
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rule-empty-line-before: null
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selector-pseudo-element-colon-notation: double
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shorthand-property-no-redundant-values: true
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no-invalid-position-at-import-rule: null
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@ -1035,10 +1035,10 @@ PATH =
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;SHOW_USER_EMAIL = true
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;;
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;; Set the default theme for the Gitea install
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;DEFAULT_THEME = gitea
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;DEFAULT_THEME = auto
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;;
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;; All available themes. Allow users select personalized themes regardless of the value of `DEFAULT_THEME`.
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;THEMES = gitea,arc-green
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;THEMES = auto,gitea,arc-green
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;;
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;; All available reactions users can choose on issues/prs and comments.
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;; Values can be emoji alias (:smile:) or a unicode emoji.
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@ -174,9 +174,9 @@ The following configuration set `Content-Type: application/vnd.android.package-a
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- `FEED_PAGING_NUM`: **20**: Number of items that are displayed in home feed.
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- `GRAPH_MAX_COMMIT_NUM`: **100**: Number of maximum commits shown in the commit graph.
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- `CODE_COMMENT_LINES`: **4**: Number of line of codes shown for a code comment.
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- `DEFAULT_THEME`: **gitea**: \[gitea, arc-green\]: Set the default theme for the Gitea install.
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- `DEFAULT_THEME`: **auto**: \[auto, gitea, arc-green\]: Set the default theme for the Gitea install.
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- `SHOW_USER_EMAIL`: **true**: Whether the email of the user should be shown in the Explore Users page.
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- `THEMES`: **gitea,arc-green**: All available themes. Allow users select personalized themes.
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- `THEMES`: **auto,gitea,arc-green**: All available themes. Allow users select personalized themes.
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regardless of the value of `DEFAULT_THEME`.
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- `THEME_COLOR_META_TAG`: **#6cc644**: Value of `theme-color` meta tag, used by Android >= 5.0. An invalid color like "none" or "disable" will have the default style. More info: https://developers.google.com/web/updates/2014/11/Support-for-theme-color-in-Chrome-39-for-Android
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- `MAX_DISPLAY_FILE_SIZE`: **8388608**: Max size of files to be displayed (default is 8MiB)
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@ -321,7 +321,7 @@ A full list of supported emoji's is at [emoji list](https://gitea.com/gitea/gite
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## Customizing the look of Gitea
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The default built-in themes are `gitea` (light) and `arc-green` (dark).
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The default built-in themes are `gitea` (light), `arc-green` (dark), and `auto` (chooses light or dark depending on operating system settings).
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The default theme can be changed via `DEFAULT_THEME` in the [ui](https://docs.gitea.io/en-us/config-cheat-sheet/#ui-ui) section of `app.ini`.
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Gitea also has support for user themes, which means every user can select which theme should be used.
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@ -158,7 +158,7 @@ Use [Fail2Ban]({{< relref "doc/usage/fail2ban-setup.en-us.md" >}}) to monitor an
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## How to add/use custom themes
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Gitea supports two official themes right now, `gitea` and `arc-green` (`light` and `dark` respectively)
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Gitea supports three official themes right now, `gitea` (light), `arc-green` (dark), and `auto` (automatically switches between the previous two depending on operating system settings).
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To add your own theme, currently the only way is to provide a complete theme (not just color overrides)
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As an example, let's say our theme is `arc-blue` (this is a real theme, and can be found [in this issue](https://github.com/go-gitea/gitea/issues/6011))
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@ -255,8 +255,8 @@ var (
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ReactionMaxUserNum: 10,
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ThemeColorMetaTag: `#6cc644`,
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MaxDisplayFileSize: 8388608,
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DefaultTheme: `gitea`,
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Themes: []string{`gitea`, `arc-green`},
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DefaultTheme: `auto`,
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Themes: []string{`auto`, `gitea`, `arc-green`},
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Reactions: []string{`+1`, `-1`, `laugh`, `hooray`, `confused`, `heart`, `rocket`, `eyes`},
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CustomEmojis: []string{`git`, `gitea`, `codeberg`, `gitlab`, `github`, `gogs`},
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CustomEmojisMap: map[string]string{"git": ":git:", "gitea": ":gitea:", "codeberg": ":codeberg:", "gitlab": ":gitlab:", "github": ":github:", "gogs": ":gogs:"},
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@ -26,7 +26,13 @@ export function isObject(obj) {
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// returns whether a dark theme is enabled
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export function isDarkTheme() {
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return document.documentElement.classList.contains('theme-arc-green');
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if (document.documentElement.classList.contains('theme-auto')) {
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return window.matchMedia('(prefers-color-scheme: dark)').matches;
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}
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if (document.documentElement.classList.contains('theme-arc-green')) {
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return true;
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}
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return false;
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}
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// removes duplicate elements in an array
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3
web_src/less/themes/theme-auto.less
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3
web_src/less/themes/theme-auto.less
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@ -0,0 +1,3 @@
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@media (prefers-color-scheme: dark) {
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@import "theme-arc-green.less";
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}
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