Configure background for kali purple in all desktops

debian/kali-themes-purple.gsettings-override

@@ -1,3 +1,8 @@
+[org.gnome.desktop.background]
+picture-options = 'zoom'
+picture-uri = 'file:///usr/share/backgrounds/kali/kali-purple.xml'
+picture-uri-dark = 'file:///usr/share/backgrounds/kali/kali-purple.xml'
+
 [org.gnome.desktop.interface]
 color-scheme = 'prefer-light'
 gtk-theme = 'adw-gtk3'

debian/kali-themes-purple.postinst

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+comment="Wallpaper for Kali Purple theme"
+
+if ! grep -q "${comment}" /usr/share/plasma/desktoptheme/kali/metadata.desktop; then
+	cat >> /usr/share/plasma/desktoptheme/kali/metadata.desktop <<- EOF
+	# $comment
+	[Wallpaper]
+	defaultWallpaperTheme=KaliPurple
+	defaultWidth=3840
+	defaultHeight=2160
+	EOF
+fi
+
+#DEBHELPER#

share/plasma/desktoptheme/kali/metadata.desktop

@@ -18,7 +18,6 @@ FallbackTheme=default
 
 [Wallpaper]
 defaultWallpaperTheme=KaliMoto
-defaultFileSuffix=.png
 defaultWidth=3840
 defaultHeight=2160