By default, BindTuning themes page layouts are automatically installed if publishing features are active.
If you detected that your theme's page layouts are not installed, please proceed to manual installation as follows:
- Go to Site Settings > Site Features
- Locate and activate the SharePoint Server Publishing feature. Wait for the page to refresh before proceeding
- Go to Site Settings > Solutions
- Locate the theme solution and deactivate the solution
- Activate the theme solution again and the layouts should be installed