diff --git a/assets/images/Makefile b/assets/images/Makefile
index 1126fe4677ab07a159bf800a208a89aa1f7ea5a2..7215a00f3cb02d63b9504bc1896501ad1bfeedbe 100644
--- a/assets/images/Makefile
+++ b/assets/images/Makefile
@@ -122,7 +122,7 @@ tablet@1635.png: tablet.png
 tablet@2180.png: tablet.png
 	$(RESOLUTION) tablet 2180 85
 tablet@thumb.png: tablet.png
-	$(THUMB) tablet 16x16 70 none
+	$(THUMB) tablet 16x16 0 none
 notifications@363.png: notifications.png
 	$(RESOLUTION) notifications 363 85
 notifications@474.png: notifications.png
diff --git a/assets/images/generate_makefile.sh b/assets/images/generate_makefile.sh
index 0a66f9cdeb4df5be1e5007647737c81252759759..ba10e3268307f0f8c724e3d12baa4fba759e7a31 100755
--- a/assets/images/generate_makefile.sh
+++ b/assets/images/generate_makefile.sh
@@ -64,7 +64,7 @@ for image in ${themes}; do
   generate_rule ${image} "220 266 335 352 532" 16x ${QUALITY} ${THUMB_QUALITY_JPG} jpg
 done
 generate_rule phone "220 300 400 520 640 800 1000 1220" 16x ${QUALITY} ${THUMB_QUALITY_PNG} png
-generate_rule tablet "545 640 720 800 880 960 1090 1635 2180" 16x16 ${QUALITY} ${THUMB_QUALITY_PNG} none
+generate_rule tablet "545 640 720 800 880 960 1090 1635 2180" 16x16 ${QUALITY} 0 none
 generate_rule notifications "363 474 590" 16x ${QUALITY} ${THUMB_QUALITY_JPG} jpg
 generate_rule desktop "363 474 590 726 948 1180" 16x ${QUALITY} ${THUMB_QUALITY_JPG} jpg
 generate_rule themes "363 474 590 726 948 1180" 16x ${QUALITY} ${THUMB_QUALITY_JPG} jpg
diff --git a/assets/images/generate_thumb.sh b/assets/images/generate_thumb.sh
index 75aa3c888541790e3ed2dbaabc931d0ede251f9c..21532a945aa2cff7f60d121fd2c2ca1221d32d6c 100755
--- a/assets/images/generate_thumb.sh
+++ b/assets/images/generate_thumb.sh
@@ -29,6 +29,8 @@ function generate_thumb_none() {
   quality=${3}
 
   convert -size ${default_resolution} xc:none ${image}@thumb.png
+  pngquant --quality ${quality} ${image}@thumb.png
+  mv ${image}@thumb-fs8.png ${image}@thumb.png
 }
 
 image=${1}
diff --git a/assets/images/tablet@thumb.png b/assets/images/tablet@thumb.png
index cf67c75b7e9e46ecc16481b982b36ccc50c30903..ef2b681b91a9e7f0625dfd274efdecd72b768a69 100644
Binary files a/assets/images/tablet@thumb.png and b/assets/images/tablet@thumb.png differ