Sociable comes by default with themes for bootstrap2, bootstrap3 and bootstrap4. You can override any of these themes to create your own theme.
How to override a theme
To override a theme, copy a theme folder from components/com_sociable/layouts/themename to /templates/yourtemplatename/html/layouts/com_sociable/themename. Each theme has set of php files for complete forum pages. Modify the required layout with your changes. Here is the summary of list of layouts which you can override:
- activity- this folder contains all layouts related to activity stream
- common – all common layouts like pagination are available in this folder
- groups – this folder contains all layouts related to groups
- profile – this folder contains all profile related layouts
- activity.php – main layout file for activity page
- groups.php – main layout file for groups page
- members.php – main layout for connect page
- notifications.php – main layout file for notifications page
- profile.php – main layout file for profile page
More details about shareable layouts can be found here:
http://docs.corejoomla.com/Extending_component_shareable_layouts