Added make support for multiple architectures and did cleanup

config/includes.chroot/etc/lightdm/lightdm-gtk-greeter.conf

@@ -47,8 +47,8 @@
 [greeter]
 background = /usr/share/backgrounds/homeworld-darker-3840x2160.png
 user-background = false
-theme-name = Arc-Darker
-icon-theme-name = Papirus
+theme-name = Adwaita-dark
+icon-theme-name = Adwaita
 font-name = Roboto
 xft-antialias = true
 #xft-dpi=