#find /usr -exec file -i {} \; | grep png
/usr/share/doc/thunar-data/html/fr/images/removable-drives-and-media.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/fr/images/bulk-rename.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/fr/images/file-properties.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/fr/images/preferences-advanced.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/fr/images/file-manager-window.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/fr/images/preferences-behavior.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/pl/images/sendto-menu.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/pl/images/visible-columns.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/pl/images/preferences-views.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/pl/images/preferences-side-pane.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/pl/images/removable-media-unmount.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/pl/images/removable-drives-and-media.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/pl/images/bulk-rename.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/pl/images/file-properties.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/pl/images/preferences-advanced.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/pl/images/file-manager-window.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/pl/images/preferences-behavior.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/eu/images/sendto-menu.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/eu/images/visible-columns.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/eu/images/preferences-views.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/eu/images/preferences-side-pane.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/eu/images/removable-media-unmount.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/eu/images/removable-drives-and-media.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/eu/images/bulk-rename.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/eu/images/file-properties.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/eu/images/preferences-advanced.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/eu/images/file-manager-window.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/eu/images/preferences-behavior.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/it/images/sendto-menu.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/it/images/visible-columns.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/it/images/preferences-views.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/it/images/preferences-side-pane.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/it/images/removable-media-unmount.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/it/images/removable-drives-and-media.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/it/images/bulk-rename.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/it/images/file-properties.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/it/images/preferences-advanced.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/it/images/file-manager-window.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/it/images/preferences-behavior.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/ru/images/sendto-menu.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/ru/images/visible-columns.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/ru/images/preferences-views.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/ru/images/preferences-side-pane.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/ru/images/removable-media-unmount.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/ru/images/removable-drives-and-media.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/ru/images/bulk-rename.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/ru/images/file-properties.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/ru/images/preferences-advanced.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/ru/images/file-manager-window.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/ru/images/preferences-behavior.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/C/images/sendto-menu.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/C/images/visible-columns.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/C/images/preferences-views.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/C/images/preferences-side-pane.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/C/images/removable-media-unmount.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/C/images/removable-drives-and-media.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/C/images/bulk-rename.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/C/images/file-properties.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/C/images/preferences-advanced.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/C/images/file-manager-window.png: image/png; charset=binary
/usr/share/doc/thunar-data/html/C/images/preferences-behavior.png: image/png; charset=binary
/usr/share/xscreensaver/glade/screensaver-colorselector.png: image/png; charset=binary
/usr/share/xscreensaver/glade/screensaver-power.png: image/png; charset=binary
/usr/share/xscreensaver/glade/screensaver-snap.png: image/png; charset=binary
/usr/share/xscreensaver/glade/screensaver-diagnostic.png: image/png; charset=binary
/usr/share/xscreensaver/glade/screensaver-cmndln.png: image/png; charset=binary
/usr/share/xscreensaver/glade/screensaver-locking.png: image/png; charset=binary
/usr/share/splashy/themes/moreblue-orbit/background-color.png: image/png; charset=binary
/usr/share/splashy/themes/moreblue-orbit/background-bw.png: image/png; charset=binary
/usr/share/mime/image/png.xml: application/xml; charset=utf-8
/usr/share/xulrunner-1.9/icons/document.png: image/png; charset=binary
/usr/share/xulrunner-1.9/res/html/folder.png: image/png; charset=binary
/usr/share/xulrunner-1.9/chrome/icons/default/default32.png: image/png; charset=binary
/usr/share/xulrunner-1.9/chrome/icons/default/default48.png: image/png; charset=binary
/usr/share/xulrunner-1.9/chrome/icons/default/default16.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/undefined.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/tired.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/dismayed.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/unknown.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/angry.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/curious.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/surprised.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/mean.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/offended.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/shocked.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/grieving.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/aroused.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/sick.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/creative.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/lucky.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/relaxed.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/humbled.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/frustrated.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/invincible.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/sarcastic.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/excited.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/spontaneous.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/restless.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/happy.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/outraged.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/hopeful.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/disappointed.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/moody.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/guilty.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/sleepy.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/thirsty.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/confused.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/in_love.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/interested.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/contemplative.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/dejected.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/flirtatious.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/cautious.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/sad.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/worried.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/humiliated.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/lonely.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/amorous.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/hurt.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/playful.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/brave.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/bored.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/lost.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/contented.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/calm.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/amazed.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/cranky.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/proud.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/strong.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/hot.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/stressed.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/afraid.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/impressed.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/ashamed.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/indignant.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/neutral.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/grumpy.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/serious.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/cold.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/distracted.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/satisfied.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/embarrassed.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/anxious.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/shy.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/weak.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/remorseful.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/confident.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/jealous.png: image/png; charset=binary
/usr/share/gajim/data/moods/default/in_awe.png: image/png; charset=binary