/usr/share/applications/remote-viewer.desktop is in virt-viewer 0.5.3-1.
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 | [Desktop Entry]
Name=Remote Viewer
Exec=remote-viewer %u
Type=Application
Terminal=False
MimeType=x-scheme-handler/spice
|