BuddyPress.org

Make sure your style.css starts with…

/*
Theme Name: BuddyPress Dusk
Theme URI: http://example.org/themes/dusk/
Description: Dark theme for BuddyPress.
Version: 1.0
Author: John Doe
Author URI: http://example.org/
Template: bp-default
Tags: buddypress, two-column, grey, dark
*/

and don’t forget the bold line!