You can use this page to test the Theme's handling of the shortcode, including the columns parameter, from 1 to 9 columns. Themes are only required to support the default setting (3 columns), so this page is entirely optional. One Column Two Columns Three Columns Four Columns Five Columns Six Columns Seven Columns Eight Columns [...]
This is a test for Jetpack’s Tiled Gallery. Install Jetpack to test. This is some text after the Tiled Gallery just to make sure that everything spaces nicely.