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<page xmlns="http://projectmallard.org/1.0/" xmlns:its="http://www.w3.org/2005/11/its" type="topic" style="task" id="desktop-background"> <info> <link type="guide" xref="appearance" /> <link type="seealso" xref="backgrounds-extra" /> <revision pkgversion="3.11" date="2014-01-29" status="draft"/> <revision pkgversion="3.14" date="2014-06-17" status="incomplete"> <desc>All prose and instructions are up to par. Extra info needs to be provided on picture options, per comment below. --shaunm</desc> </revision> <credit type="author copyright"> <name>Matthias Clasen</name> <email>matthias.clasen@gmail.com</email> <years>2012</years> </credit> <credit type="editor"> <name>Jana Svarova</name> <email>jana.svarova@gmail.com</email> <years>2013</years> </credit> <credit type="editor"> <name>Petr Kovar</name> <email>pknbe@volny.cz</email> <years>2014</years> </credit> <credit type="editor"> <name>David King</name> <email>davidk@gnome.org</email> <years>2014</years> </credit> <credit type="editor"> <name>Ekaterina Gerasimova</name> <email>kittykat3756@gmail.com</email> <years>2014</years> </credit> <desc>Change the default desktop background for all users.</desc> </info> <title>Set custom background</title> <p>You can change the default desktop background to one that you want to use. For example, you may want to use a background with your company or university logo instead of the default GNOME background.</p> <steps> <title>Set the default background</title> <include href="dconf-snippets.xml" xpointer="xpointer(/*/*[@xml:id='dconf-profile-user'])" xmlns="http://www.w3.org/2001/XInclude"/> <include href="dconf-snippets.xml" xpointer="xpointer(/*/*[@xml:id='dconf-profile-user-dir'])" xmlns="http://www.w3.org/2001/XInclude"/> <item> <p>Create the key file <file>/etc/dconf/db/local.d/00-background</file> to provide information for the <sys>local</sys> database.</p> <listing> <title><file>/etc/dconf/db/local.d/00-background</file></title> <code> # Specify the dconf path [org/gnome/desktop/background] # Specify the path to the desktop background image file picture-uri='file:///usr/local/share/backgrounds/wallpaper.jpg' # Specify one of the rendering options for the background image: picture-options='scaled' # Specify the left or top color when drawing gradients, or the solid color primary-color='000000' # Specify the right or bottom color when drawing gradients secondary-color='FFFFFF' </code> </listing> <comment> <cite date="2014-06-18">shaunm</cite> <p>Provide information about the different picture-options values. Possibly also about when and how colors are used and what the gradient does.</p> </comment> </item> <item> <p>To prevent the user from overriding these settings, create the file <file>/etc/dconf/db/local.d/locks/background</file> with the following content:</p> <listing> <title><file>/etc/dconf/db/local.d/locks/background</file></title> <code> # Lock desktop background settings /org/gnome/desktop/background/picture-uri /org/gnome/desktop/background/picture-options /org/gnome/desktop/background/primary-color /org/gnome/desktop/background/secondary-color </code> </listing> </item> <include href="dconf-snippets.xml" xpointer="xpointer(/*/*[@xml:id='dconf-update'])" xmlns="http://www.w3.org/2001/XInclude"/> <include href="dconf-snippets.xml" xpointer="xpointer(/*/*[@xml:id='dconf-logoutin'])" xmlns="http://www.w3.org/2001/XInclude"/> </steps> </page>