Prepare for impish release

debian/control

@@ -2,7 +2,7 @@ Source: ubuntucinnamon-artwork
 Priority: optional
 Section: x11
 Maintainer: Joshua Peisach <[email protected]>
-Standards-Version: 4.5.1
+Standards-Version: 4.6.0
 Rules-Requires-Root: no
 Vcs-Browser: https://github.com/Ubuntu-Cinnamon-Remix/ubuntucinnamon-artwork/
 Vcs-Git: https://github.com/Ubuntu-Cinnamon-Remix/ubuntucinnamon-artwork.git
@@ -31,7 +31,7 @@ Depends: ${misc:Depends},
          yaru-cinnamon-theme-gtk,
          yaru-cinnamon-theme-icon,
          ubuntucinnamon-lightdm-theme-base,
-         ubuntucinnamon-wallpapers-hirsute
+         ubuntucinnamon-wallpapers-impish
 Description: LightDM Greeter theme for Ubuntu Cinnamon
  This is the LightDM greeter theme and configuration
  used for a standalone Ubuntu Cinnamon installation.

debian/ubuntucinnamon-lightdm-theme.gsettings-override

@@ -1,6 +1,6 @@
 [x.dm.slick-greeter]
 font-name='Ubuntu 11'
-background='/usr/share/backgrounds/ubuntucinnamon/hirsute/ubuntu_cinnamon_hirsute_hippo.jpg'
+background='/usr/share/backgrounds/ubuntucinnamon/impish/ubuntu_cinnamon_impish_indri.jpg'
 draw-grid=false
 theme-name='Yaru-Cinnamon-Dark'
 icon-theme-name='Yaru-Cinnamon'