Sparkle Demo Importer imports sparkle themes full demo with just one click. It is specially developed for demo import purpose. This plugin works for theme developed by SparleThemes and if other themes wants to use then they have to use action filter to work.

This Wordpress plugin allows a user to create templates of their page content. This is especially useful when after purchasing/downloading a theme, you want to store the demo content but don't want the content to clutter your pages section.

Registers custom post types and custom fields for the Brooklyn WordPress Theme

Registers custom post types and custom fields for the Polmo WordPress Theme