/usr/share/applications/gcolor2.desktop is in gcolor2 0.4-2.1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 | [Desktop Entry]
Name=Gcolor2
GenericName=Gcolor2
Comment=Simple GTK2 color selector and picker
Exec=gcolor2
Icon=/usr/share/pixmaps/gcolor2/gcolor2.xpm
Terminal=false
Type=Application
Categories=Application;Graphics;
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