Current documentation of huggle contains obsolete screenshots related to huggle 2. Huggle 3 uses a little bit different interface, so the documentation pages should be updated to reflect the changes. Especially lot of new screenshots needs to be made. These screenshots can be made on any supported operating system. However they should be consistent, preferably all screenshots should be made on same machine.

For example https://www.mediawiki.org/wiki/Manual:Huggle/Interface describes previous version, new is: https://commons.wikimedia.org/wiki/File:Huggle3_kde_ubuntu.png