Discourse is highly customizable, enabling you to modify almost any aspect of its appearance through themes.
To maintain compatibility with ongoing Discourse updates and new features, all themes require occasional maintenance. The frequency of maintenance depends on the customization complexity and type. You can minimize maintenance efforts for your theme by following these guidelines:
- Check for official themes or theme components that match your desired functionality. These are updated alongside Discourse. These can also serve as examples of how to approach your own customizations.
- Replace interface text using the admin → customize → text feature by searching for the specific text and updating it there.
- Theme CSS is additive, allowing you to override default styles without editing them directly. This approach improves CSS maintainability and minimizes conflicts with updates.
- Use a version control system like Git with GitHub, GitLab, or Bitbucket for tracking changes. While the HTML and CSS editor at admin → customize → themes is convenient for minor adjustments, version control systems can make it easier to track and troubleshoot more complex changes.
- For advanced customizations, create independent modules for new functionality and integrate them through plugin outlets. Discourse uses Ember.js, so building Ember components is ideal. This method isolates custom functionality, reduces maintenance, and helps avoid conflicts with Discourse updates.
For more information on using and building Discourse themes, feel free to ask questions on our Meta community, and take a look through our theming guides:
- Beginner’s Guide to using Discourse Themes
- Designer’s Guide to Discourse Themes
- Developer’s guide to Discourse Themes
- How to enable Safe Mode to troubleshoot issues with themes and plugins
- Structure of themes and theme components
- Create and share a font theme component
- How to create and share a color scheme
- How to use Discourse core variables in your theme
- How to add settings to your Discourse theme
- Theme Creator, create and show themes without installing Discourse!