Category View Browsing Sub Templates

Within the category browse feature you have up to 3 options for the format you view listings in. They are grid, list and gallery. You can see the buttons to change between those views within the following screenshot:

And note you can control which of those are options and which is default within your admin tool in the following locations:

SITE SETUP > BROWSING SETTINGS > Display browse view links
SITE SETUP > BROWSING SETTINGS > Default Browse View

You can set a specific "body template" for each format here in the admin tool:

DESIGN > PAGE ATTACHMENT > 3_grid - Browse Categories Grid Sub-Template
DESIGN > PAGE ATTACHMENT > 3_list - Browse Categories List Sub-Template
DESIGN > PAGE ATTACHMENT > 3_gallery - Browse Categories Gallery Sub-Template