For developers, apparently the relevant source code is found in the extensions folder: https://bazaar.launchpad.net/~ubuntu-branches/ubuntu/wily/gthumb/wily/files/head:/extensions/desktop_background/
For developers, apparently the relevant source code is found in the extensions folder: /bazaar. launchpad. net/~ubuntu- branches/ ubuntu/ wily/gthumb/ wily/files/ head:/extension s/desktop_ background/
https:/