Use the new ubuntu-theme virtual SDDM theme, and remove the Conflicts on the Breeze theme.

debian/changelog

@@ -1,3 +1,10 @@
+lubuntu-artwork (1.6) UNRELEASED; urgency=medium
+
+  * Use the new ubuntu-theme virtual SDDM theme, and remove the Conflicts on
+    the Breeze theme.
+
+ -- Simon Quigley <tsimonq2@ubuntu.com>  Fri, 27 Jul 2018 08:20:05 -0500
+
 lubuntu-artwork (1.5) cosmic; urgency=medium
 
   * Change the SDDM theme wallpaper to the default 18.04 one.

debian/control

@@ -50,7 +50,7 @@ Package: sddm-theme-lubuntu
 Architecture: all
 Depends: ${misc:Depends}
 Recommends: sddm
-Conflicts: sddm-theme-breeze, sddm-theme-lubuntu-chooser (<< 1.4)
+Conflicts: sddm-theme-lubuntu-chooser (<< 1.4)
 Replaces: sddm-theme-lubuntu-chooser (<< 1.4)
 Provides: sddm-theme
 Description: Lubuntu theme for SDDM X11 display manager

debian/sddm-theme-lubuntu.postinst

@@ -3,9 +3,9 @@ set -e
 
 if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-remove" ]; then
     update-alternatives --install \
-        /usr/share/sddm/themes/breeze \
-        breeze \
-        /usr/share/sddm/themes/lubuntu 20
+        /usr/share/sddm/themes/ubuntu-theme \
+        sddm-ubuntu-theme \
+        /usr/share/sddm/themes/lubuntu 50
 fi
 
 # Tag to allow some debhelper commands to inject relevant code

debian/sddm-theme-lubuntu.prerm

@@ -3,7 +3,7 @@ set -e
 
 if [ "$1" = "remove" ] || [ "$1" = "deconfigure" ]; then
     update-alternatives --remove \
-        breeze \
+        sddm-ubuntu-theme \
         /usr/share/sddm/themes/lubuntu
 fi