diff --git a/.github/workflows/android.yml b/.github/workflows/android.yml
new file mode 100644
index 00000000..80bf37c0
--- /dev/null
+++ b/.github/workflows/android.yml
@@ -0,0 +1,36 @@
+name: EdXposedManagerR
+
+on: 
+ push:
+    branches:
+    - master
+
+jobs:
+  linux:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: set up JDK 1.8
+        uses: actions/setup-java@v1
+        with:
+          java-version: 1.8
+      - uses: actions/cache@v1
+        with:
+          path: ~/.gradle/caches
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle') }}
+          restore-keys: |
+            ${{ runner.os }}-gradle-
+      - name: Build
+        env:
+          KEYSTORE_PASS: ${{ secrets.KEYSTORE_PASS }}
+          ALIAS_NAME: ${{ secrets.ALIAS_NAME }}
+          ALIAS_PASS: ${{ secrets.ALIAS_PASS }}
+        run: |
+          chmod +x gradlew
+          ./gradlew assembleRelease
+      - uses: actions/upload-artifact@master
+        name: Upload artifact
+        with:
+          name: EdXposedManagerR
+          path: app/build/outputs/
diff --git a/app/build.gradle b/app/build.gradle
index 2d3ad136..ea4b1d15 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -24,7 +24,8 @@ android {
         }
     }
     compileSdkVersion 28
-    buildToolsVersion "29.0.3"
+    //noinspection GradleDependency
+    buildToolsVersion "29.0.2"
     defaultConfig {
         applicationId "org.meowcat.edxposed.manager"
         minSdkVersion 26
@@ -32,6 +33,7 @@ android {
         targetSdkVersion 27
         versionCode 45409
         versionName "4.5.4.5"
+        signingConfig signingConfigs.release
     }
     buildTypes {
         release {
diff --git a/app/src/main/res/xml/prefs.xml b/app/src/main/res/xml/prefs.xml
index 42caee6f..3e8684a0 100644
--- a/app/src/main/res/xml/prefs.xml
+++ b/app/src/main/res/xml/prefs.xml
@@ -12,7 +12,7 @@
             android:title="@string/primary_color"
             app:iconSpaceReserved="false" />
         <org.meowcat.edxposed.manager.widget.ThemeColorPreference
-            android:defaultValue="#1a73e8"
+            android:defaultValue="#e91e63"
             android:dialogTitle="@string/accent_color"
             android:key="accent_color"
             android:title="@string/accent_color"
diff --git a/appveyor.yml b/appveyor.yml
deleted file mode 100644
index 1848d3e7..00000000
--- a/appveyor.yml
+++ /dev/null
@@ -1,19 +0,0 @@
-environment:
-  matrix:
-  - ANDROID_HOME: "C:\\android-sdk-windows"
-install:
-- cmd: >-
-    appveyor DownloadFile https://dl.google.com/android/repository/sdk-tools-windows-3859397.zip
-    
-    7z x sdk-tools-windows-3859397.zip -oC:\android-sdk-windows > nul
-    
-    yes | C:\android-sdk-windows\tools\bin\sdkmanager.bat --licenses > nul
-cache: 
-- C:\android-sdk-windows\build-tools
-- C:\android-sdk-windows\platforms
-- C:\android-sdk-windows\platform-tools
-build_script:
-- cmd: gradlew.bat assembleRelease
-artifacts:
-- path: app/build/outputs/apk/
-  name: APK
diff --git a/build.gradle b/build.gradle
index 40b2eeab..f4f30163 100644
--- a/build.gradle
+++ b/build.gradle
@@ -8,7 +8,7 @@ buildscript {
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:3.6.1'
-        classpath 'com.google.android.gms:oss-licenses-plugin:0.10.1'
+        classpath 'com.google.android.gms:oss-licenses-plugin:0.10.2'
         
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files