While I'm here, the "supertux.png" icon is a symlink to "supertuxkart.png", which is not really appropriate, as the steering wheel icon isn't applicable to the "Supertux" platform game.
Also, the "firefox-nightly.png" icon should be redesigned, like the recent "firefox.png" redesign.
The following icon names should be deleted:
There's no need to rename them, as the right versions already exist:
While I'm here, the "supertux.png" icon is a symlink to "supertuxkart.png", which is not really appropriate, as the steering wheel icon isn't applicable to the "Supertux" platform game.
Also, the "firefox-nightly.png" icon should be redesigned, like the recent "firefox.png" redesign.