Window icon for Emacs in window list

[August]

Hi all,

I have created a launcher for GNU Emacs on the Gnome panel. The launcher
has the standard gnu icon (/usr/share/pixmaps/emacs.png). However, the
icon used for Emacs windows in the window list shows an empty piece of
paper (default icon?). It's much easier to locate Emacs windows in the
window list if they use the gnu icon. Does anyone know how to change the
icon?

-- 
August