Purify Theme has just been updated and now includes a new option: to use tags that link to permalink pages. In this update, you can now choose to have tags that link to permalink pages instead (e.g. “design” will link to “blogname.tumblr.com/tagged/design). This means that although it won’t perform the fading in / fading out filtering animations, it will load ALL items under that tag as a new page. The maximum amount of tags that will load is 25 and they will be sorted by popularity.
With tags with permalinks enabled,”filter by type” will not show up on the sidebar. It is strange that Tumblr allows permalinks for tags but not post types, as Chris Kalani said, it should be pretty easy for Tumblr to implement.
Lastly, you can also enable infinite scroll if you have tags with permalinks enabled. If you’re using the default filtering layout, infinite scroll can’t be enabled - this has been explained in the FAQ. Users who are happy with their current Purify customization need not to worry, this update will not change anything, it only adds new options.
If you’re using Custom HTML you won’t get the update, for more info on how to get the update check out the updates page. As always if you have any more questions or are running into any trouble, please email me.