Gtk+ themes from Shimmer Project

 This package contains all the desktop suites by Shimmer Project.
 .
  * Albatross, a dark and light theme that was originally designed for
    Xubuntu 9.10. Albatross is designed to be smooth: no rough borders,
    no contrasted edges, no violent contrasts, a soft blue colour.
  * Bluebird is the colorful successor to Albatross originally designed
    for Xubuntu 10.10. Bluebird is the only way to go if you love blue!
  * Greybird is the more conservative but at the same time modern variant
    of Bluebird. Greybird contains a lot of improvements over Bluebird;
    amongst other things, full GTK3 support.