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251 lines
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251 lines
12 KiB
---
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date: "2017-04-15T14:56:00+02:00"
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title: "Customizing Gitea"
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slug: "customizing-gitea"
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weight: 9
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toc: false
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draft: false
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menu:
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sidebar:
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parent: "advanced"
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name: "Customizing Gitea"
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identifier: "customizing-gitea"
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weight: 9
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---
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# Customizing Gitea
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Customizing Gitea is typically done using the `CustomPath` folder - by default this is
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the `custom` folder from the running directory, but may be different if your build has
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set this differently. This is the central place to override configuration settings,
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templates, etc. You can check the `CustomPath` using `gitea help`. You can also find
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the path on the _Configuration_ tab in the _Site Administration_ page. You can override
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the `CustomPath` by setting either the `GITEA_CUSTOM` environment variable or by
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using the `--custom-path` option on the `gitea` binary. (The option will override the
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environment variable.)
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If Gitea is deployed from binary, all default paths will be relative to the Gitea
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binary. If installed from a distribution, these paths will likely be modified to
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the Linux Filesystem Standard. Gitea will attempt to create required folders, including
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`custom/`. Distributions may provide a symlink for `custom` using `/etc/gitea/`.
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Application settings can be found in file `CustomConf` which is by default,
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`CustomPath/conf/app.ini` but may be different if your build has set this differently.
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Again `gitea help` will allow you review this variable and you can override it using the
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`--config` option on the `gitea` binary.
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- [Quick Cheat Sheet](https://docs.gitea.io/en-us/config-cheat-sheet/)
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- [Complete List](https://github.com/go-gitea/gitea/blob/master/custom/conf/app.ini.sample)
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If the `CustomPath` folder can't be found despite checking `gitea help`, check the `GITEA_CUSTOM`
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environment variable; this can be used to override the default path to something else.
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`GITEA_CUSTOM` might, for example, be set by an init script.
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- [List of Environment Variables](https://docs.gitea.io/en-us/specific-variables/)
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**Note:** Gitea must perform a full restart to see configuration changes.
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## Serving custom public files
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To make Gitea serve custom public files (like pages and images), use the folder
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`custom/public/` as the webroot. Symbolic links will be followed.
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For example, a file `image.png` stored in `custom/public/`, can be accessed with
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the url `http://gitea.domain.tld/image.png`.
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## Changing the default avatar
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Place the png image at the following path: `custom/public/img/avatar_default.png`
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## Customizing Gitea pages and resources
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Gitea's executable contains all the resources required to run: templates, images, style-sheets
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and translations. Any of them can be overridden by placing a replacement in a matching path
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inside the `custom` directory. For example, to replace the default `.gitignore` provided
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for C++ repositories, we want to replace `options/gitignore/C++`. To do this, a replacement
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must be placed in `custom/options/gitignore/C++` (see about the location of the `custom`
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directory at the top of this document).
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Every single page of Gitea can be changed. Dynamic content is generated using [go templates](https://golang.org/pkg/html/template/),
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which can be modified by placing replacements below the `custom/templates` directory.
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To obtain any embedded file (including templates), the [`gitea embedded` tool]({{< relref "doc/advanced/cmd-embedded.en-us.md" >}}) can be used. Alternatively, they can be found in the [`templates`](https://github.com/go-gitea/gitea/tree/master/templates) directory of Gitea source (Note: the example link is from the `master` branch. Make sure to use templates compatible with the release you are using).
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Be aware that any statement contained inside `{{` and `}}` are Gitea's template syntax and
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shouldn't be touched without fully understanding these components.
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### Customizing startpage / homepage
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Copy [`home.tmpl`](https://github.com/go-gitea/gitea/blob/master/templates/home.tmpl) for your version of Gitea from `templates` to `custom/templates`.
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Edit as you wish.
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Dont forget to restart your gitea to apply the changes.
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### Adding links and tabs
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If all you want is to add extra links to the top navigation bar or footer, or extra tabs to the repository view, you can put them in `extra_links.tmpl` (links added to the navbar), `extra_links_footer.tmpl` (links added to the left side of footer), and `extra_tabs.tmpl` inside your `custom/templates/custom/` directory.
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For instance, let's say you are in Germany and must add the famously legally-required "Impressum"/about page, listing who is responsible for the site's content:
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just place it under your "custom/public/" directory (for instance `custom/public/impressum.html`) and put a link to it in either `custom/templates/custom/extra_links.tmpl` or `custom/templates/custom/extra_links_footer.tmpl`.
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To match the current style, the link should have the class name "item", and you can use `{{AppSubUrl}}` to get the base URL:
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`<a class="item" href="{{AppSubUrl}}/impressum.html">Impressum</a>`
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For more information, see [Adding Legal Pages](https://docs.gitea.io/en-us/adding-legal-pages).
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You can add new tabs in the same way, putting them in `extra_tabs.tmpl`.
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The exact HTML needed to match the style of other tabs is in the file
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`templates/repo/header.tmpl`
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([source in GitHub](https://github.com/go-gitea/gitea/blob/master/templates/repo/header.tmpl))
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### Other additions to the page
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Apart from `extra_links.tmpl` and `extra_tabs.tmpl`, there are other useful templates you can put in your `custom/templates/custom/` directory:
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- `header.tmpl`, just before the end of the `<head>` tag where you can add custom CSS files for instance.
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- `body_outer_pre.tmpl`, right after the start of `<body>`.
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- `body_inner_pre.tmpl`, before the top navigation bar, but already inside the main container `<div class="full height">`.
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- `body_inner_post.tmpl`, before the end of the main container.
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- `body_outer_post.tmpl`, before the bottom `<footer>` element.
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- `footer.tmpl`, right before the end of the `<body>` tag, a good place for additional Javascript.
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#### Example: Mermaid.js
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If you would like to add [mermaid.js](https://mermaid-js.github.io/mermaid) support to Gitea's markdown you simply add:
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```html
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{{if .RequireHighlightJS}}
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<script src="https://unpkg.com/mermaid@8.4.5/dist/mermaid.min.js"></script>
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<!-- or wherever you have placed it -->
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<script>mermaid.init(".language-mermaid")</script>
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{{end}}
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```
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to `custom/footer.tmpl`. You then can add blocks
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like below to your markdown:
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```mermaid
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stateDiagram
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[*] --> Active
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state Active {
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[*] --> NumLockOff
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NumLockOff --> NumLockOn : EvNumLockPressed
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NumLockOn --> NumLockOff : EvNumLockPressed
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--
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[*] --> CapsLockOff
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CapsLockOff --> CapsLockOn : EvCapsLockPressed
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CapsLockOn --> CapsLockOff : EvCapsLockPressed
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--
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[*] --> ScrollLockOff
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ScrollLockOff --> ScrollLockOn : EvCapsLockPressed
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ScrollLockOn --> ScrollLockOff : EvCapsLockPressed
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}
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```
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If you want to use Mermaid.js outside of markdown, e.g. in other templates or HTML files,
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you would need to remove `{{if .RequireHighlightJS}}` and `{{end}}`.
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Mermaid will detect and use tags with `class="language-mermaid"`.
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#### Example: PlantUML
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You can add [PlantUML](https://plantuml.com/) support to Gitea's markdown by using a PlantUML server.
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The data is encoded and sent to the PlantUML server which generates the picture. There is an online
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demo server at http://www.plantuml.com/plantuml, but if you (or your users) have sensitive data you
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can set up your own [PlantUML server](https://plantuml.com/server) instead. To set up PlantUML rendering,
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copy javascript files from https://gitea.com/davidsvantesson/plantuml-code-highlight and put them in your
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`custom/public` folder. Then add the following to `custom/footer.tmpl`:
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```html
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{{if .RequireHighlightJS}}
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<script src="https://your-server.com/deflate.js"></script>
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<script src="https://your-server.com/encode.js"></script>
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<script src="https://your-server.com/plantuml_codeblock_parse.js"></script>
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<script>
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<!-- Replace call with address to your plantuml server-->
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parsePlantumlCodeBlocks("http://www.plantuml..com/plantuml")
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</script>
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{{end}}
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```
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You can then add blocks like the following to your markdown:
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```plantuml
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Alice -> Bob: Authentication Request
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Bob --> Alice: Authentication Response
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Alice -> Bob: Another authentication Request
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Alice <-- Bob: Another authentication Response
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```
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The script will detect tags with `class="language-plantuml"`, but you can change this by providing a second argument to `parsePlantumlCodeBlocks`.
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## Customizing Gitea mails
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The `custom/templates/mail` folder allows changing the body of every mail of Gitea.
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Templates to override can be found in the
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[`templates/mail`](https://github.com/go-gitea/gitea/tree/master/templates/mail)
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directory of Gitea source.
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Override by making a copy of the file under `custom/templates/mail` using a
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full path structure matching source.
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Any statement contained inside `{{` and `}}` are Gitea's template
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syntax and shouldn't be touched without fully understanding these components.
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## Adding Analytics to Gitea
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Google Analytics, Matomo (previously Piwik), and other analytics services can be added to Gitea. To add the tracking code, refer to the `Other additions to the page` section of this document, and add the JavaScript to the `custom/templates/custom/header.tmpl` file.
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## Customizing gitignores, labels, licenses, locales, and readmes.
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Place custom files in corresponding sub-folder under `custom/options`.
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**NOTE:** The files should not have a file extension, e.g. `Labels` rather than `Labels.txt`
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### gitignores
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To add custom .gitignore, add a file with existing [.gitignore rules](https://git-scm.com/docs/gitignore) in it to `custom/options/gitignore`
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### Labels
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To add a custom label set, add a file that follows the [label format](https://github.com/go-gitea/gitea/blob/master/options/label/Default) to `custom/options/label`
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`#hex-color label name ; label description`
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### Licenses
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To add a custom license, add a file with the license text to `custom/options/license`
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### Locales
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Locales are managed via our [crowdin](https://crowdin.com/project/gitea).
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You can override a locale by placing an altered locale file in `custom/options/locale`.
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Gitea's default locale files can be found in the [`options/locale`](https://github.com/go-gitea/gitea/tree/master/options/locale) source folder and these should be used as examples for your changes.
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To add a completely new locale, as well as placing the file in the above location, you will need to add the new lang and name to the `[i18n]` section in your `app.ini`. Keep in mind that Gitea will use those settings as **overrides**, so if you want to keep the other languages as well you will need to copy/paste the default values and add your own to them.
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```
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[i18n]
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LANGS = en-US,foo-BAR
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NAMES = English,FooBar
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```
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Locales may change between versions, so keeping track of your customized locales is highly encouraged.
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### Readmes
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To add a custom Readme, add a markdown formatted file (without an `.md` extension) to `custom/options/readme`
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### Reactions
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To change reaction emoji's you can set allowed reactions at app.ini
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```
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[ui]
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REACTIONS = +1, -1, laugh, confused, heart, hooray, eyes
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```
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A full list of supported emoji's is at [emoji list](https://gitea.com/gitea/gitea.com/issues/8)
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## Customizing the look of Gitea
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As of version 1.6.0 Gitea has built-in themes. The two built-in themes are, the default theme `gitea`, and a dark theme `arc-green`. To change the look of your Gitea install change the value of `DEFAULT_THEME` in the [ui](https://docs.gitea.io/en-us/config-cheat-sheet/#ui-ui) section of `app.ini` to another one of the available options.
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As of version 1.8.0 Gitea also has per-user themes. The list of themes a user can choose from can be configured with the `THEMES` value in the [ui](https://docs.gitea.io/en-us/config-cheat-sheet/#ui-ui) section of `app.ini` (defaults to `gitea` and `arc-green`, light and dark respectively)
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