This package is "back from the future". It contains the wallpapers for Kali version 2021.4 (to be released at the end of 2021). However: 1) This package is already ready 2) Daniel wants to release it now, as the wallpapers it contains were already presented to the rest of the world So we want that the package is pulled in during upgrades, or is part of new ISOs, and we use Recommends for that. The wallpapers in there are NOT used by default. Gbp-Dch: ignore
kali-themes
This package joins together all files that are related to theming and configuration of the visual appearance. They were formerly split across gnome-theme-kali, kali-defaults and desktop-base.
file structure
All "data" files (share/* and what's built in the kali-logos and emblems
directory) are provided by kali-themes-common while the configuration
files (etc/*) are provided by kali-themes.
desktop-base integration
desktop-base integration is provided by kali-desktop-base through registration of various files in alternatives defined by the desktop-base package. The files are not installed in /usr/share/desktop-base/ except for a symlink tree mimicking a "destkop-base theme". That symlink tree is pre-built in the "share/desktop-base/kali-themes" directory in the source package.
The kali-themes-common package is also installing various symlinks trees to mimick directories that are traditionnally handled by desktop-base. Most notably the directories in /usr/share/wallpapers/ that are used by KDE.
configuration files
The configuration files stored in the "etc" sub-directory are installed as is in the "kali-themes" package. However the files listed in "files-to-divert" are first diverted by dpkg-divert and the actual files are stored in /usr/share/kali-themes/etc/ and copied in their target location by the postinst script (see debian/kali-themes.postinst).
When you add a new file that needs to be diverted, you can update the list in "files-to-divert" and run "debian/update-maintainer-scripts" to update the list of files in the 3 maintainer scripts.
wallpapers
The wallpapers are provided by the kali-wallpapers-VERSION binary package which is built by the kali-wallpapers source package. We have the Makefile which generates some symlinks pointing to the kali-wallpapers-VERSION that we depend upon.
Care must be taken to ensure that we depend on the right package so that the symlinks are working. So update debian/control and Makefile at the same time.