PNG ICO ICNS MORE
Mozilla Thunderbird
moz, Thunderbird, Graphite
DarkGray
48x48
moz, solo, Thunderbird
Alt, Aqua, Thunderbird
Aqua, Thunderbird, smooth
DarkSlateGray
Alt, Thunderbird, graph
moz, Aqua, Thunderbird
Aqua, moz, Thunderbird
Thunderbird, moz, punch
graph, Thunderbird, flat
DimGray