To preview a Stash Tumblr theme to your blog in the Customizer:
- Go to the customize screen on Tumblr
- Click on “Browse Themes” at the top
- Click on a theme to see a preview of that theme on your blog.
- Click “Use” to be able to view its theme options and customize them (more on this later under “Customizing your theme“).
- Click “Save” to install the theme you selected to your blog.
