/usr/share/gridengine/pixmaps/logo.xpm is in gridengine-qmon 6.2u5-7.3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/gridengine/pixmaps/logo-sge.xpm
/usr/share/gridengine/pixmaps/logo-sge.xpm