PNG ICO ICNS MORE
Outline
Locale
Black
128x128
OpenWorld
option, Configure, config
48x48
Human-O2
Setting, config, Desktop
PNG ICO MORE
GNOME Desktop
Gnome, option, config
64x64
Kids
Education & science
Handdrawn
Brainy Icons Free — 36 Science and Education Icons
Book, docs, hand-drawn
UI
3D
Gnome Web Icons
Desktop, preferences, Gnome
Crystal Clear
Locale, translation
16x16