PNG ICO ICNS MORE
UI
Pixel
Gnome icons
toggle, Header, Navigator
WhiteSmoke
16x16
toggle, Navigator, list
Black
master, Navigator, toggle
toggle, Font, formatting
24x24
Fugue Icons
collapse, toggle
Gainsboro
toggle, collapse
RoyalBlue
toggle
Lavender
PNG MORE
3D
Crystal Clear
Docbrowser, toggle
22x22
Silk
Minus, collapse, bullet
Silver