Fixed android launcher icon size

android/app/src/main/AndroidManifest.xml

@@ -5,7 +5,7 @@
     <application
         android:label="Lightmeter"
         android:name="${applicationName}"
-        android:icon="@mipmap/launcher_icon">
+        android:icon="@mipmap/ic_launcher">
         <activity
             android:name=".MainActivity"
             android:exported="true"

android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/ic_launcher_background"/>
+    <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
+</adaptive-icon>

android/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/ic_launcher_background"/>
+    <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
+</adaptive-icon>

android/app/src/main/res/mipmap-anydpi-v26/launcher_icon.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+  <background android:drawable="@color/ic_launcher_background"/>
+  <foreground android:drawable="@drawable/ic_launcher_foreground"/>
+</adaptive-icon>

android/app/src/main/res/values/ic_launcher_background.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="ic_launcher_background">#212121</color>
+</resources>

pubspec.yaml

@@ -40,14 +40,5 @@ dependency_overrides:
 flutter:
   uses-material-design: true
 
-flutter_icons:
-  image_path_android: "assets/launcher_icon_circle.png"
-  android: "launcher_icon"
-  adaptive_icon_background: "#fafafa"
-  image_path_ios: "assets/launcher_icon_square.png"
-  ios: true
-  remove_alpha_ios: true
-  min_sdk_android: 21
-
 flutter_intl:
   enabled: true