/usr/share/mate/applications/display-im6.q16.desktop is in ubuntu-mate-default-settings 16.04.5.
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 10 11 12 13 14 15 | [Desktop Entry]
Version=1.0
Name=ImageMagick (display Q16)
Comment=Display and edit image files
Comment[fr]=Affiche et édite des fichiers images
Comment[pt]=Exiba e edite arquivos de imagem
Exec=/usr/lib/x86_64-linux-gnu/ImageMagick-6.8.9/bin-Q16/display %f
Terminal=false
Icon=display-im6.q16
Type=Application
Categories=Graphics;
Keywords=Image;Slideshow;View;Transform;Enhance;F/X;Special Effects
Keywords[fr]=Image;Diaporama;Visualiser;Transformer;Améliorer;Effets spéciaux
MimeType=image/avs;image/bie;image/x-ms-bmp;image/cmyk;image/dcx;image/eps;image/fax;image/fits;image/gif;image/gray;image/jpeg;image/pjpeg;image/miff;image/mono;image/mtv;image/x-portable-bitmap;image/pcd;image/pcx;image/pdf;image/x-portable-graymap;image/pict;image/png;image/x-portable-anymap;image/x-portable-pixmap;image/ps;image/rad;image/x-rgb;image/rgba;image/rla;image/rle;image/sgi;image/sun-raster;image/targa;image/tiff;image/uyvy;image/vid;image/viff;image/x-xbitmap;image/x-xpixmap;image/x-xwindowdump;image/x-icon;image/yuv;
NoDisplay=true
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