[gnome-backgrounds/wip/jimmac/prefers-dark-light] first stab at the default

[Jakub Steiner <jimmac src gnome org>]

commit 93376e313e09815f28940364caf2ca94b69d3575
Author: Jakub Steiner <jimmac gmail com>
Date:   Fri Dec 3 16:21:58 2021 +0100

    first stab at the default

 backgrounds/adwaita-d.jpg        | Bin 0 -> 789440 bytes
 backgrounds/adwaita-d.png        | Bin 4686549 -> 0 bytes
 backgrounds/adwaita-l.jpg        | Bin 0 -> 1940212 bytes
 backgrounds/adwaita-l.png        | Bin 5488834 -> 0 bytes
 backgrounds/adwaita-timed.xml.in |   8 ++++----
 backgrounds/meson.build          |   4 ++--
 6 files changed, 6 insertions(+), 6 deletions(-)
---
diff --git a/backgrounds/adwaita-d.jpg b/backgrounds/adwaita-d.jpg
new file mode 100644
index 0000000..bce7dcb
Binary files /dev/null and b/backgrounds/adwaita-d.jpg differ
diff --git a/backgrounds/adwaita-l.jpg b/backgrounds/adwaita-l.jpg
new file mode 100644
index 0000000..6d79fd7
Binary files /dev/null and b/backgrounds/adwaita-l.jpg differ
diff --git a/backgrounds/adwaita-timed.xml.in b/backgrounds/adwaita-timed.xml.in
index 848f029..6b94586 100644
--- a/backgrounds/adwaita-timed.xml.in
+++ b/backgrounds/adwaita-timed.xml.in
@@ -11,13 +11,13 @@
 <!-- We start at 7 AM. It will remain up for 12 hours. -->
 <static>
 <duration>43200.0</duration>
-<file>@datadir@/backgrounds/gnome/adwaita-l.png</file>
+<file>@datadir@/backgrounds/gnome/adwaita-l.jpg</file>
 </static>
 
 <!-- It's 7 PM. It will remain for 12 hours -->
 <static>
 <duration>43200.0</duration>
-<file>@datadir@/backgrounds/gnome/adwaita-d.png</file>
+<file>@datadir@/backgrounds/gnome/adwaita-d.jpg</file>
 </static>
 
 
@@ -25,8 +25,8 @@
 FIXME: eventually we'll transition. let's start simple
 <transition type="overlay">
 <duration>21600.0</duration>
-<from>@datadir@/backgrounds/gnome/adwaita-day.png</from>
-<to>@datadir@/backgrounds/gnome/adwaita-night.png</to>
+<from>@datadir@/backgrounds/gnome/adwaita-day.jpg</from>
+<to>@datadir@/backgrounds/gnome/adwaita-night.jpg</to>
 </transition>
 -->
 
diff --git a/backgrounds/meson.build b/backgrounds/meson.build
index 7cbc0fb..06c6e88 100644
--- a/backgrounds/meson.build
+++ b/backgrounds/meson.build
@@ -9,8 +9,8 @@ adwaita_timed = configure_file(
 )
 
 backgrounds = [
-  'adwaita-d.png',
-  'adwaita-l.png',
+  'adwaita-d.jpg',
+  'adwaita-l.jpg',
   'blobs-d.svg',
   'blobs-l.svg',
   'brush-strokes-d.jpg',