diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/01-bluefin-day.jxl b/system_files/silverblue/usr/share/backgrounds/bluefin/01-bluefin-day.jxl
deleted file mode 100644
index c18170c93e8..00000000000
Binary files a/system_files/silverblue/usr/share/backgrounds/bluefin/01-bluefin-day.jxl and /dev/null differ
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/01-bluefin-day.webp b/system_files/silverblue/usr/share/backgrounds/bluefin/01-bluefin-day.webp
new file mode 100644
index 00000000000..d56ab2794ea
Binary files /dev/null and b/system_files/silverblue/usr/share/backgrounds/bluefin/01-bluefin-day.webp differ
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/01-bluefin-night.jxl b/system_files/silverblue/usr/share/backgrounds/bluefin/01-bluefin-night.jxl
deleted file mode 100644
index 4ed2fa2819f..00000000000
Binary files a/system_files/silverblue/usr/share/backgrounds/bluefin/01-bluefin-night.jxl and /dev/null differ
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/01-bluefin-night.webp b/system_files/silverblue/usr/share/backgrounds/bluefin/01-bluefin-night.webp
new file mode 100644
index 00000000000..3643ccda555
Binary files /dev/null and b/system_files/silverblue/usr/share/backgrounds/bluefin/01-bluefin-night.webp differ
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/01-bluefin.xml b/system_files/silverblue/usr/share/backgrounds/bluefin/01-bluefin.xml
index 917660a9328..f1d0198e719 100644
--- a/system_files/silverblue/usr/share/backgrounds/bluefin/01-bluefin.xml
+++ b/system_files/silverblue/usr/share/backgrounds/bluefin/01-bluefin.xml
@@ -9,24 +9,24 @@
         </starttime>
 
         <static>
-                <file>/usr/share/backgrounds/bluefin/01-bluefin-day.jxl</file>
+                <file>/usr/share/backgrounds/bluefin/01-bluefin-day.webp</file>
                 <duration>37200.0</duration>
         </static>
 
         <transition type="overlay">
                 <duration>1800.0</duration>
-                <from>/usr/share/backgrounds/bluefin/01-bluefin-day.jxl</from>
-                <to>/usr/share/backgrounds/bluefin/01-bluefin-night.jxl</to>
+                <from>/usr/share/backgrounds/bluefin/01-bluefin-day.webp</from>
+                <to>/usr/share/backgrounds/bluefin/01-bluefin-night.webp</to>
         </transition>
 
         <static>
-                <file>/usr/share/backgrounds/bluefin/01-bluefin-night.jxl</file>
+                <file>/usr/share/backgrounds/bluefin/01-bluefin-night.webp</file>
                 <duration>45600.0</duration>
         </static>
 
         <transition type="overlay">
                 <duration>1800.0</duration>
-                <from>/usr/share/backgrounds/bluefin/01-bluefin-night.jxl</from>
-                <to>/usr/share/backgrounds/bluefin/01-bluefin-day.jxl</to>
+                <from>/usr/share/backgrounds/bluefin/01-bluefin-night.webp</from>
+                <to>/usr/share/backgrounds/bluefin/01-bluefin-day.webp</to>
         </transition>
 </background>
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/02-bluefin.xml b/system_files/silverblue/usr/share/backgrounds/bluefin/02-bluefin.xml
index 9845fda01c0..36e66ccad76 100644
--- a/system_files/silverblue/usr/share/backgrounds/bluefin/02-bluefin.xml
+++ b/system_files/silverblue/usr/share/backgrounds/bluefin/02-bluefin.xml
@@ -9,24 +9,24 @@
         </starttime>
 
         <static>
-                <file>/usr/share/backgrounds/bluefin/02bluefin-day.jxl</file>
+                <file>/usr/share/backgrounds/bluefin/02bluefin-day.webp</file>
                 <duration>34800.0</duration>
         </static>
 
         <transition type="overlay">
                 <duration>7200.0</duration>
-                <from>/usr/share/backgrounds/bluefin/02-bluefin-day.jxl</from>
-                <to>/usr/share/backgrounds/bluefin/02-bluefin-night.jxl</to>
+                <from>/usr/share/backgrounds/bluefin/02-bluefin-day.webp</from>
+                <to>/usr/share/backgrounds/bluefin/02-bluefin-night.webp</to>
         </transition>
 
         <static>
-                <file>/usr/share/backgrounds/bluefin/02-bluefin-night.jxl</file>
+                <file>/usr/share/backgrounds/bluefin/02-bluefin-night.webp</file>
                 <duration>37200.0</duration>
         </static>
 
         <transition type="overlay">
                 <duration>7200.0</duration>
-                <from>/usr/share/backgrounds/bluefin/02-bluefin-night.jxl</from>
-                <to>/usr/share/backgrounds/bluefin/02-bluefin-day.jxl</to>
+                <from>/usr/share/backgrounds/bluefin/02-bluefin-night.webp</from>
+                <to>/usr/share/backgrounds/bluefin/02-bluefin-day.webp</to>
         </transition>
 </background>
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/03-bluefin.xml b/system_files/silverblue/usr/share/backgrounds/bluefin/03-bluefin.xml
index c35c30f1435..c4bb4c65ff7 100644
--- a/system_files/silverblue/usr/share/backgrounds/bluefin/03-bluefin.xml
+++ b/system_files/silverblue/usr/share/backgrounds/bluefin/03-bluefin.xml
@@ -9,24 +9,24 @@
         </starttime>
 
         <static>
-                <file>/usr/share/backgrounds/bluefin/03-bluefin-day.jxl</file>
+                <file>/usr/share/backgrounds/bluefin/03-bluefin-day.webp</file>
                 <duration>37800.0</duration>
         </static>
 
         <transition type="overlay">
                 <duration>7200.0</duration>
-                <from>/usr/share/backgrounds/bluefin/03-bluefin-day.jxl</from>
-                <to>/usr/share/backgrounds/bluefin/03-bluefin-night.jxl</to>
+                <from>/usr/share/backgrounds/bluefin/03-bluefin-day.webp</from>
+                <to>/usr/share/backgrounds/bluefin/03-bluefin-night.webp</to>
         </transition>
 
         <static>
-                <file>/usr/share/backgrounds/bluefin/03-bluefin-night.jxl</file>
+                <file>/usr/share/backgrounds/bluefin/03-bluefin-night.webp</file>
                 <duration>34200.0</duration>
         </static>
 
         <transition type="overlay">
                 <duration>7200.0</duration>
-                <from>/usr/share/backgrounds/bluefin/03-bluefin-night.jxl</from>
-                <to>/usr/share/backgrounds/bluefin/03-bluefin-day.jxl</to>
+                <from>/usr/share/backgrounds/bluefin/03-bluefin-night.webp</from>
+                <to>/usr/share/backgrounds/bluefin/03-bluefin-day.webp</to>
         </transition>
 </background>
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/04-bluefin-day.jxl b/system_files/silverblue/usr/share/backgrounds/bluefin/04-bluefin-day.jxl
deleted file mode 100644
index f97ef7d58d6..00000000000
Binary files a/system_files/silverblue/usr/share/backgrounds/bluefin/04-bluefin-day.jxl and /dev/null differ
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/04-bluefin-day.webp b/system_files/silverblue/usr/share/backgrounds/bluefin/04-bluefin-day.webp
new file mode 100644
index 00000000000..545c1898f50
Binary files /dev/null and b/system_files/silverblue/usr/share/backgrounds/bluefin/04-bluefin-day.webp differ
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/04-bluefin-night.jxl b/system_files/silverblue/usr/share/backgrounds/bluefin/04-bluefin-night.jxl
deleted file mode 100644
index 6c9ddf9c6a4..00000000000
Binary files a/system_files/silverblue/usr/share/backgrounds/bluefin/04-bluefin-night.jxl and /dev/null differ
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/04-bluefin-night.webp b/system_files/silverblue/usr/share/backgrounds/bluefin/04-bluefin-night.webp
new file mode 100644
index 00000000000..fcb26750e18
Binary files /dev/null and b/system_files/silverblue/usr/share/backgrounds/bluefin/04-bluefin-night.webp differ
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/04-bluefin.xml b/system_files/silverblue/usr/share/backgrounds/bluefin/04-bluefin.xml
index 8bf8cf1de7c..b34d463f504 100644
--- a/system_files/silverblue/usr/share/backgrounds/bluefin/04-bluefin.xml
+++ b/system_files/silverblue/usr/share/backgrounds/bluefin/04-bluefin.xml
@@ -9,24 +9,24 @@
         </starttime>
 
         <static>
-                <file>/usr/share/backgrounds/bluefin/04-bluefin-day.jxl</file>
+                <file>/usr/share/backgrounds/bluefin/04-bluefin-day.webp</file>
                 <duration>39600.0</duration>
         </static>
 
         <transition type="overlay">
                 <duration>7200.0</duration>
-                <from>/usr/share/backgrounds/bluefin/04-bluefin-day.jxl</from>
-                <to>/usr/share/backgrounds/bluefin/04-bluefin-night.jxl</to>
+                <from>/usr/share/backgrounds/bluefin/04-bluefin-day.webp</from>
+                <to>/usr/share/backgrounds/bluefin/04-bluefin-night.webp</to>
         </transition>
 
         <static>
-                <file>/usr/share/backgrounds/bluefin/04-bluefin-night.jxl</file>
+                <file>/usr/share/backgrounds/bluefin/04-bluefin-night.webp</file>
                 <duration>32400.0</duration>
         </static>
 
         <transition type="overlay">
                 <duration>7200.0</duration>
-                <from>/usr/share/backgrounds/bluefin/04-bluefin-night.jxl</from>
-                <to>/usr/share/backgrounds/bluefin/04-bluefin-day.jxl</to>
+                <from>/usr/share/backgrounds/bluefin/04-bluefin-night.webp</from>
+                <to>/usr/share/backgrounds/bluefin/04-bluefin-day.webp</to>
         </transition>
 </background>
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/05-bluefin.xml b/system_files/silverblue/usr/share/backgrounds/bluefin/05-bluefin.xml
index e5cf7360d20..bdea0d4f9e4 100644
--- a/system_files/silverblue/usr/share/backgrounds/bluefin/05-bluefin.xml
+++ b/system_files/silverblue/usr/share/backgrounds/bluefin/05-bluefin.xml
@@ -9,24 +9,24 @@
         </starttime>
 
         <static>
-                <file>/usr/share/backgrounds/bluefin/05-bluefin-day.jxl</file>
+                <file>/usr/share/backgrounds/bluefin/05-bluefin-day.webp</file>
                 <duration>41400.0</duration>
         </static>
 
         <transition type="overlay">
                 <duration>7200.0</duration>
-                <from>/usr/share/backgrounds/bluefin/05-bluefin-day.jxl</from>
-                <to>/usr/share/backgrounds/bluefin/05-bluefin-night.jxl</to>
+                <from>/usr/share/backgrounds/bluefin/05-bluefin-day.webp</from>
+                <to>/usr/share/backgrounds/bluefin/05-bluefin-night.webp</to>
         </transition>
 
         <static>
-                <file>/usr/share/backgrounds/bluefin/05-bluefin-night.jxl</file>
+                <file>/usr/share/backgrounds/bluefin/05-bluefin-night.webp</file>
                 <duration>30600.0</duration>
         </static>
 
         <transition type="overlay">
                 <duration>7200.0</duration>
-                <from>/usr/share/backgrounds/bluefin/05-bluefin-night.jxl</from>
-                <to>/usr/share/backgrounds/bluefin/05-bluefin-day.jxl</to>
+                <from>/usr/share/backgrounds/bluefin/05-bluefin-night.webp</from>
+                <to>/usr/share/backgrounds/bluefin/05-bluefin-day.webp</to>
         </transition>
 </background>
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/06-bluefin.xml b/system_files/silverblue/usr/share/backgrounds/bluefin/06-bluefin.xml
index 3c7798775bb..a4f219015cb 100644
--- a/system_files/silverblue/usr/share/backgrounds/bluefin/06-bluefin.xml
+++ b/system_files/silverblue/usr/share/backgrounds/bluefin/06-bluefin.xml
@@ -9,24 +9,24 @@
         </starttime>
 
         <static>
-                <file>/usr/share/backgrounds/bluefin/06-bluefin-day.jxl</file>
+                <file>/usr/share/backgrounds/bluefin/06-bluefin-day.webp</file>
                 <duration>43200.0</duration>
         </static>
 
         <transition type="overlay">
                 <duration>7200.0</duration>
-                <from>/usr/share/backgrounds/bluefin/06-bluefin-day.jxl</from>
-                <to>/usr/share/backgrounds/bluefin/06-bluefin-night.jxl</to>
+                <from>/usr/share/backgrounds/bluefin/06-bluefin-day.webp</from>
+                <to>/usr/share/backgrounds/bluefin/06-bluefin-night.webp</to>
         </transition>
 
         <static>
-                <file>/usr/share/backgrounds/bluefin/06-bluefin-night.jxl</file>
+                <file>/usr/share/backgrounds/bluefin/06-bluefin-night.webp</file>
                 <duration>28800.0</duration>
         </static>
 
         <transition type="overlay">
                 <duration>7200.0</duration>
-                <from>/usr/share/backgrounds/bluefin/06-bluefin-night.jxl</from>
-                <to>/usr/share/backgrounds/bluefin/06-bluefin-day.jxl</to>
+                <from>/usr/share/backgrounds/bluefin/06-bluefin-night.webp</from>
+                <to>/usr/share/backgrounds/bluefin/06-bluefin-day.webp</to>
         </transition>
 </background>
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/07-bluefin.xml b/system_files/silverblue/usr/share/backgrounds/bluefin/07-bluefin.xml
index 9ecff0e822d..1731033bc2c 100644
--- a/system_files/silverblue/usr/share/backgrounds/bluefin/07-bluefin.xml
+++ b/system_files/silverblue/usr/share/backgrounds/bluefin/07-bluefin.xml
@@ -9,24 +9,24 @@
         </starttime>
 
         <static>
-                <file>/usr/share/backgrounds/bluefin/07-bluefin-day.jxl</file>
+                <file>/usr/share/backgrounds/bluefin/07-bluefin-day.webp</file>
                 <duration>40200.0</duration>
         </static>
 
         <transition type="overlay">
                 <duration>7200.0</duration>
-                <from>/usr/share/backgrounds/bluefin/07-bluefin-day.jxl</from>
-                <to>/usr/share/backgrounds/bluefin/07-bluefin-night.jxl</to>
+                <from>/usr/share/backgrounds/bluefin/07-bluefin-day.webp</from>
+                <to>/usr/share/backgrounds/bluefin/07-bluefin-night.webp</to>
         </transition>
 
         <static>
-                <file>/usr/share/backgrounds/bluefin/07-bluefin-night.jxl</file>
+                <file>/usr/share/backgrounds/bluefin/07-bluefin-night.webp</file>
                 <duration>31800.0</duration>
         </static>
 
         <transition type="overlay">
                 <duration>7200.0</duration>
-                <from>/usr/share/backgrounds/bluefin/07-bluefin-night.jxl</from>
-                <to>/usr/share/backgrounds/bluefin/07-bluefin-day.jxl</to>
+                <from>/usr/share/backgrounds/bluefin/07-bluefin-night.webp</from>
+                <to>/usr/share/backgrounds/bluefin/07-bluefin-day.webp</to>
         </transition>
 </background>
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/08-bluefin-day.jxl b/system_files/silverblue/usr/share/backgrounds/bluefin/08-bluefin-day.jxl
deleted file mode 100644
index 0dca6e33ab5..00000000000
Binary files a/system_files/silverblue/usr/share/backgrounds/bluefin/08-bluefin-day.jxl and /dev/null differ
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/08-bluefin-day.webp b/system_files/silverblue/usr/share/backgrounds/bluefin/08-bluefin-day.webp
new file mode 100644
index 00000000000..7d5d772e3a2
Binary files /dev/null and b/system_files/silverblue/usr/share/backgrounds/bluefin/08-bluefin-day.webp differ
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/08-bluefin-night.jxl b/system_files/silverblue/usr/share/backgrounds/bluefin/08-bluefin-night.jxl
deleted file mode 100644
index 33ea05d0d6d..00000000000
Binary files a/system_files/silverblue/usr/share/backgrounds/bluefin/08-bluefin-night.jxl and /dev/null differ
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/08-bluefin-night.webp b/system_files/silverblue/usr/share/backgrounds/bluefin/08-bluefin-night.webp
new file mode 100644
index 00000000000..a202ae84506
Binary files /dev/null and b/system_files/silverblue/usr/share/backgrounds/bluefin/08-bluefin-night.webp differ
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/08-bluefin.xml b/system_files/silverblue/usr/share/backgrounds/bluefin/08-bluefin.xml
index 4e7aa92b2dc..8aa78845e2e 100644
--- a/system_files/silverblue/usr/share/backgrounds/bluefin/08-bluefin.xml
+++ b/system_files/silverblue/usr/share/backgrounds/bluefin/08-bluefin.xml
@@ -9,24 +9,24 @@
         </starttime>
 
         <static>
-                <file>/usr/share/backgrounds/bluefin/08-bluefin-day.jxl</file>
+                <file>/usr/share/backgrounds/bluefin/08-bluefin-day.webp</file>
                 <duration>37200.0</duration>
         </static>
 
         <transition type="overlay">
                 <duration>7200.0</duration>
-                <from>/usr/share/backgrounds/bluefin/08-bluefin-day.jxl</from>
-                <to>/usr/share/backgrounds/bluefin/08-bluefin-night.jxl</to>
+                <from>/usr/share/backgrounds/bluefin/08-bluefin-day.webp</from>
+                <to>/usr/share/backgrounds/bluefin/08-bluefin-night.webp</to>
         </transition>
 
         <static>
-                <file>/usr/share/backgrounds/bluefin/08-bluefin-night.jxl</file>
+                <file>/usr/share/backgrounds/bluefin/08-bluefin-night.webp</file>
                 <duration>34800.0</duration>
         </static>
 
         <transition type="overlay">
                 <duration>7200.0</duration>
-                <from>/usr/share/backgrounds/bluefin/08-bluefin-night.jxl</from>
-                <to>/usr/share/backgrounds/bluefin/08-bluefin-day.jxl</to>
+                <from>/usr/share/backgrounds/bluefin/08-bluefin-night.webp</from>
+                <to>/usr/share/backgrounds/bluefin/08-bluefin-day.webp</to>
         </transition>
 </background>
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/09-bluefin.xml b/system_files/silverblue/usr/share/backgrounds/bluefin/09-bluefin.xml
index d3e8d8f8df5..6b12417080e 100644
--- a/system_files/silverblue/usr/share/backgrounds/bluefin/09-bluefin.xml
+++ b/system_files/silverblue/usr/share/backgrounds/bluefin/09-bluefin.xml
@@ -9,24 +9,24 @@
         </starttime>
 
         <static>
-                <file>/usr/share/backgrounds/bluefin/09-bluefin-day.jxl</file>
+                <file>/usr/share/backgrounds/bluefin/09-bluefin-day.webp</file>
                 <duration>34200.0</duration>
         </static>
 
         <transition type="overlay">
                 <duration>7200.0</duration>
-                <from>/usr/share/backgrounds/bluefin/09-bluefin-day.jxl</from>
-                <to>/usr/share/backgrounds/bluefin/09-bluefin-night.jxl</to>
+                <from>/usr/share/backgrounds/bluefin/09-bluefin-day.webp</from>
+                <to>/usr/share/backgrounds/bluefin/09-bluefin-night.webp</to>
         </transition>
 
         <static>
-                <file>/usr/share/backgrounds/bluefin/09-bluefin-night.jxl</file>
+                <file>/usr/share/backgrounds/bluefin/09-bluefin-night.webp</file>
                 <duration>37800.0</duration>
         </static>
 
         <transition type="overlay">
                 <duration>7200.0</duration>
-                <from>/usr/share/backgrounds/bluefin/09-bluefin-night.jxl</from>
-                <to>/usr/share/backgrounds/bluefin/09-bluefin-day.jxl</to>
+                <from>/usr/share/backgrounds/bluefin/09-bluefin-night.webp</from>
+                <to>/usr/share/backgrounds/bluefin/09-bluefin-day.webp</to>
         </transition>
 </background>
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/10-bluefin-day.jxl b/system_files/silverblue/usr/share/backgrounds/bluefin/10-bluefin-day.jxl
deleted file mode 100644
index d9e8b630c7d..00000000000
Binary files a/system_files/silverblue/usr/share/backgrounds/bluefin/10-bluefin-day.jxl and /dev/null differ
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/10-bluefin-day.webp b/system_files/silverblue/usr/share/backgrounds/bluefin/10-bluefin-day.webp
new file mode 100644
index 00000000000..c7416a80f56
Binary files /dev/null and b/system_files/silverblue/usr/share/backgrounds/bluefin/10-bluefin-day.webp differ
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/10-bluefin-night.jxl b/system_files/silverblue/usr/share/backgrounds/bluefin/10-bluefin-night.jxl
deleted file mode 100644
index 543c58b60ac..00000000000
Binary files a/system_files/silverblue/usr/share/backgrounds/bluefin/10-bluefin-night.jxl and /dev/null differ
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/10-bluefin-night.webp b/system_files/silverblue/usr/share/backgrounds/bluefin/10-bluefin-night.webp
new file mode 100644
index 00000000000..4b7fe919a26
Binary files /dev/null and b/system_files/silverblue/usr/share/backgrounds/bluefin/10-bluefin-night.webp differ
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/10-bluefin.xml b/system_files/silverblue/usr/share/backgrounds/bluefin/10-bluefin.xml
index 26e1c840166..8993e9abd1b 100644
--- a/system_files/silverblue/usr/share/backgrounds/bluefin/10-bluefin.xml
+++ b/system_files/silverblue/usr/share/backgrounds/bluefin/10-bluefin.xml
@@ -9,24 +9,24 @@
         </starttime>
 
         <static>
-                <file>/usr/share/backgrounds/bluefin/10-bluefin-day.jxl</file>
+                <file>/usr/share/backgrounds/bluefin/10-bluefin-day.webp</file>
                 <duration>32400.0</duration>
         </static>
 
         <transition type="overlay">
                 <duration>7200.0</duration>
-                <from>/usr/share/backgrounds/bluefin/10-bluefin-day.jxl</from>
-                <to>/usr/share/backgrounds/bluefin/10-bluefin-night.jxl</to>
+                <from>/usr/share/backgrounds/bluefin/10-bluefin-day.webp</from>
+                <to>/usr/share/backgrounds/bluefin/10-bluefin-night.webp</to>
         </transition>
 
         <static>
-                <file>/usr/share/backgrounds/bluefin/10-bluefin-night.jxl</file>
+                <file>/usr/share/backgrounds/bluefin/10-bluefin-night.webp</file>
                 <duration>39600.0</duration>
         </static>
 
         <transition type="overlay">
                 <duration>7200.0</duration>
-                <from>/usr/share/backgrounds/bluefin/10-bluefin-night.jxl</from>
-                <to>/usr/share/backgrounds/bluefin/10-bluefin-day.jxl</to>
+                <from>/usr/share/backgrounds/bluefin/10-bluefin-night.webp</from>
+                <to>/usr/share/backgrounds/bluefin/10-bluefin-day.webp</to>
         </transition>
 </background>
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/11-bluefin-day.jxl b/system_files/silverblue/usr/share/backgrounds/bluefin/11-bluefin-day.jxl
deleted file mode 100644
index 05c85bfa05b..00000000000
Binary files a/system_files/silverblue/usr/share/backgrounds/bluefin/11-bluefin-day.jxl and /dev/null differ
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/11-bluefin-day.webp b/system_files/silverblue/usr/share/backgrounds/bluefin/11-bluefin-day.webp
new file mode 100644
index 00000000000..bfcb9381cad
Binary files /dev/null and b/system_files/silverblue/usr/share/backgrounds/bluefin/11-bluefin-day.webp differ
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/11-bluefin-night.jxl b/system_files/silverblue/usr/share/backgrounds/bluefin/11-bluefin-night.jxl
deleted file mode 100644
index b4ff801161d..00000000000
Binary files a/system_files/silverblue/usr/share/backgrounds/bluefin/11-bluefin-night.jxl and /dev/null differ
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/11-bluefin-night.webp b/system_files/silverblue/usr/share/backgrounds/bluefin/11-bluefin-night.webp
new file mode 100644
index 00000000000..86ac56cf84f
Binary files /dev/null and b/system_files/silverblue/usr/share/backgrounds/bluefin/11-bluefin-night.webp differ
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/11-bluefin.xml b/system_files/silverblue/usr/share/backgrounds/bluefin/11-bluefin.xml
index 218ae320918..26653d62794 100644
--- a/system_files/silverblue/usr/share/backgrounds/bluefin/11-bluefin.xml
+++ b/system_files/silverblue/usr/share/backgrounds/bluefin/11-bluefin.xml
@@ -9,24 +9,24 @@
         </starttime>
 
         <static>
-                <file>/usr/share/backgrounds/bluefin/11-bluefin-day.jxl</file>
+                <file>/usr/share/backgrounds/bluefin/11-bluefin-day.webp</file>
                 <duration>30600.0</duration>
         </static>
 
         <transition type="overlay">
                 <duration>7200.0</duration>
-                <from>/usr/share/backgrounds/bluefin/11-bluefin-day.jxl</from>
-                <to>/usr/share/backgrounds/bluefin/11-bluefin-night.jxl</to>
+                <from>/usr/share/backgrounds/bluefin/11-bluefin-day.webp</from>
+                <to>/usr/share/backgrounds/bluefin/11-bluefin-night.webp</to>
         </transition>
 
         <static>
-                <file>/usr/share/backgrounds/bluefin/11-bluefin-night.jxl</file>
+                <file>/usr/share/backgrounds/bluefin/11-bluefin-night.webp</file>
                 <duration>41400.0</duration>
         </static>
 
         <transition type="overlay">
                 <duration>7200.0</duration>
-                <from>/usr/share/backgrounds/bluefin/11-bluefin-night.jxl</from>
-                <to>/usr/share/backgrounds/bluefin/11-bluefin-day.jxl</to>
+                <from>/usr/share/backgrounds/bluefin/11-bluefin-night.webp</from>
+                <to>/usr/share/backgrounds/bluefin/11-bluefin-day.webp</to>
         </transition>
 </background>
diff --git a/system_files/silverblue/usr/share/backgrounds/bluefin/12-bluefin.xml b/system_files/silverblue/usr/share/backgrounds/bluefin/12-bluefin.xml
index d7629d14dfa..788fde0c942 100644
--- a/system_files/silverblue/usr/share/backgrounds/bluefin/12-bluefin.xml
+++ b/system_files/silverblue/usr/share/backgrounds/bluefin/12-bluefin.xml
@@ -9,24 +9,24 @@
         </starttime>
 
         <static>
-                <file>/usr/share/backgrounds/bluefin/12-bluefin-day.jxl</file>
+                <file>/usr/share/backgrounds/bluefin/12-bluefin-day.webp</file>
                 <duration>28800.0</duration>
         </static>
 
         <transition type="overlay">
                 <duration>7200.0</duration>
-                <from>/usr/share/backgrounds/bluefin/12-bluefin-day.jxl</from>
-                <to>/usr/share/backgrounds/bluefin/12-bluefin-night.jxl</to>
+                <from>/usr/share/backgrounds/bluefin/12-bluefin-day.webp</from>
+                <to>/usr/share/backgrounds/bluefin/12-bluefin-night.webp</to>
         </transition>
 
         <static>
-                <file>/usr/share/backgrounds/bluefin/12-bluefin-night.jxl</file>
+                <file>/usr/share/backgrounds/bluefin/12-bluefin-night.webp</file>
                 <duration>43200.0</duration>
         </static>
 
         <transition type="overlay">
                 <duration>7200.0</duration>
-                <from>/usr/share/backgrounds/bluefin/12-bluefin-night.jxl</from>
-                <to>/usr/share/backgrounds/bluefin/12-bluefin-day.jxl</to>
+                <from>/usr/share/backgrounds/bluefin/12-bluefin-night.webp</from>
+                <to>/usr/share/backgrounds/bluefin/12-bluefin-day.webp</to>
         </transition>
 </background>