diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index de0136e..16194a5 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -2,13 +2,13 @@ image: openjdk:18-jdk-bullseye
 
 before_script:
   - apt --quiet update --yes
-  - apt --quiet install --yes wget tar unzip perl p7zip-full
+  - apt --quiet install --yes wget tar unzip perl p7zip-full imagemagick pngquant
 
 BleedingEdge:
   interruptible: true
   stage: build
   script: |
-  	StartDir="$(pwd)"
+    StartDir="$(pwd)"
     mkdir -p ../AndroidSdk
     cd ../AndroidSdk
     wget -O BuildTools.zip https://dl.google.com/android/repository/build-tools_r30.0.3-linux.zip
@@ -16,7 +16,6 @@ BleedingEdge:
     yes A | unzip BuildTools.zip || true
     yes A | unzip Platform.zip || true
     cd "$StartDir"
-    
     sh ./tools/Build.sh
   artifacts:
     paths:
diff --git a/app/src/main/res/drawable-hdpi/ic_launcher.png b/app/src/main/res/drawable-hdpi/ic_launcher.png
deleted file mode 100644
index 14d02a9..0000000
Binary files a/app/src/main/res/drawable-hdpi/ic_launcher.png and /dev/null differ
diff --git a/app/src/main/res/drawable-mdpi/ic_launcher.png b/app/src/main/res/drawable-mdpi/ic_launcher.png
deleted file mode 100644
index b4989b6..0000000
Binary files a/app/src/main/res/drawable-mdpi/ic_launcher.png and /dev/null differ
diff --git a/app/src/main/res/drawable-xhdpi/ic_launcher.png b/app/src/main/res/drawable-xhdpi/ic_launcher.png
deleted file mode 100644
index ed28f77..0000000
Binary files a/app/src/main/res/drawable-xhdpi/ic_launcher.png and /dev/null differ
diff --git a/app/src/main/res/drawable-xxhdpi/ic_launcher.png b/app/src/main/res/drawable-xxhdpi/ic_launcher.png
deleted file mode 100644
index b026ead..0000000
Binary files a/app/src/main/res/drawable-xxhdpi/ic_launcher.png and /dev/null differ
diff --git a/app/src/main/res/drawable-xxxhdpi/ic_launcher.png b/app/src/main/res/drawable-xxxhdpi/ic_launcher.png
deleted file mode 100644
index aa3125d..0000000
Binary files a/app/src/main/res/drawable-xxxhdpi/ic_launcher.png and /dev/null differ
diff --git a/app/src/main/res/drawable/ic_launcher.png b/app/src/main/res/drawable/ic_launcher.png
index aa3125d..cc07fdd 100644
Binary files a/app/src/main/res/drawable/ic_launcher.png and b/app/src/main/res/drawable/ic_launcher.png differ
diff --git a/tools/Build.sh b/tools/Build.sh
index 065a192..b7ecc82 100755
--- a/tools/Build.sh
+++ b/tools/Build.sh
@@ -7,5 +7,7 @@ mv ./java ./src
 cp -r ../tools/tiny-android-template/* ./
 echo "${SecEncodedKeystore}" | base64 --decode > ./Keystore.jks
 
+sh ../tools/BuildAssets.sh
+
 perl ./link.pl
 bash ./make.sh
diff --git a/tools/BuildAssets.sh b/tools/BuildAssets.sh
new file mode 100755
index 0000000..3cebc1c
--- /dev/null
+++ b/tools/BuildAssets.sh
@@ -0,0 +1,22 @@
+#!/bin/sh
+Img=ic_launcher.png
+
+cd ./res
+
+for Dpi in m h xh xxh xxxh
+do
+	mkdir -p ./drawable-${Dpi}dpi
+done
+
+convert ./drawable/$Img -resize 48x48 ./drawable-mdpi/$Img
+convert ./drawable/$Img -resize 72x72 ./drawable-hdpi/$Img
+convert ./drawable/$Img -resize 96x96 ./drawable-xhdpi/$Img
+convert ./drawable/$Img -resize 144x144 ./drawable-xxhdpi/$Img
+convert ./drawable/$Img -resize 192x192 ./drawable-xxxhdpi/$Img
+
+for Dpi in m h xh xxh xxxh
+do
+	pngquant -v --strip --speed=1 --force -o ./drawable-${Dpi}dpi/$Img ./drawable-${Dpi}dpi/$Img
+done
+
+cd ..