If all you want is to add extra links to the top navigation bar, or extra tabs to the repository view, you can put them in `extra_links.tmpl` and `extra_tabs.tmpl` inside your `custom/templates/custom/` directory.
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:
just place it under your "custom/public/" directory (for instance `custom/public/impressum.html`) and put a link to it in `custom/templates/custom/extra_links.tmpl`.
To match the current style, the link should have the class name "item", and you can use `{{AppSubUrl}}` to get the base URL:
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.
**NOTE:** The files should not have a file extension, e.g. `Labels` rather than `Labels.txt`
### gitignores
To add custom .gitignore, add a file with existing [.gitignore rules](https://git-scm.com/docs/gitignore) in it to `custom/options/gitignore`
### Labels
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`
`#hex-color label name ; label description`
### Licenses
To add a custom license, add a file with the license text to `custom/options/license`
### Locales
Locales are managed via our [crowdin](https://crowdin.com/project/gitea).
You can override a locale by placing an altered locale file in `custom/options/locale`.
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.
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.
```
[i18n]
LANGS = en-US,foo-BAR
NAMES = English,FooBar
```
Locales may change between versions, so keeping track of your customized locales is highly encouraged.
### Readmes
To add a custom Readme, add a markdown formatted file (without an `.md` extension) to `custom/options/readme`
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.
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)
