/usr/share/pixmaps/ginkgocadx.png is in ginkgocadx 3.6.0.1228.33+dfsg-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/pixmaps/../ginkgocadx/resources/cadxcore/logos/ginkgo48x48.png
/usr/share/pixmaps/../ginkgocadx/resources/cadxcore/logos/ginkgo48x48.png