ls -al /usr/share/icons/hicolor

total 92
drwxr-xr-x 15 root root  4096 Jun 19 18:56 .
drwxr-xr-x  3 root root  4096 Mar 24 23:11 ..
drwxr-xr-x 15 root root  4096 Apr  1  2009 128x128
drwxr-xr-x 15 root root  4096 Apr  1  2009 16x16
drwxr-xr-x 15 root root  4096 Apr  1  2009 192x192
drwxr-xr-x 15 root root  4096 Apr  1  2009 22x22
drwxr-xr-x 15 root root  4096 Apr  1  2009 24x24
drwxr-xr-x 15 root root  4096 May  4  2011 256x256
drwxr-xr-x 15 root root  4096 Apr  1  2009 32x32
drwxr-xr-x 15 root root  4096 Apr  1  2009 36x36
drwxr-xr-x 15 root root  4096 Apr  1  2009 48x48
drwxr-xr-x 15 root root  4096 Apr  1  2009 64x64
drwxr-xr-x 15 root root  4096 Apr  1  2009 72x72
drwxr-xr-x 15 root root  4096 Apr  1  2009 96x96
-rw-r--r--  1 root root  1252 Nov  3  2012 icon-theme.cache
-rw-r--r--  1 root root 24671 Mar 22  2012 index.theme
drwxr-xr-x 15 root root  4096 Apr  1  2009 scalable