The following PNGs are based on Ubuntu 11.10 SVG files located in /usr/share/icons/unity-icon-theme/places/svg/
- group-folders.svg
- group-files.svg
- group-downloads.svg

  lib/gollum/frontend/public/css/document.png
  lib/gollum/frontend/public/css/folder-horizontal.png
  lib/gollum/frontend/public/css/toggle-small-expand.png
  lib/gollum/frontend/public/css/toggle-small.png

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The css-tree-menu code is used under the MIT license.

http://www.thecssninja.com/css/css-tree-menu
http://www.thecssninja.com/demo/license.txt

  lib/gollum/frontend/public/css/_styles.css
