"crystal-clear-atomic.png" was obtained originally from:

      http://upload.wikimedia.org/wikipedia/commons/6/6a/\
Crystal_Clear_app_katomic.png

Note: This URL was valid as of  mid-2007.  However, it may have broken
since then.

This image file is distributed under the following license:

      GNU Lesser General Public License, version 2.1 (Feb. 1999)