Resource authors and licenses
-----------------------------
+icons/application-exit.png,
+icons/document-new.png,
+icons/document-open.png,
+icons/document-save-as.png,
+icons/help-browser.png,
+icons/media-playback-pause.png,
+icons/media-playback-start.png,
+icons/preferences-system.png,
+icons/search.svg,
+icons/window-new.png,
+icons/zoom-fit-best.png,
+icons/zoom-in.png,
+icons/zoom-out.png: Tango Icon Library
+ http://tango.freedesktop.org/Tango_Desktop_Project
+ License:
+ Public Domain
+
icons/information.svg: Bobarino
https://en.wikipedia.org/wiki/File:Information.svg
License: