Configure splash screen background color #d2242e and adaptive launcher icon background to remove white masking border on launch

flutter_app/android/app/src/main/res/drawable-v21/launch_background.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- Modify this file to customize your launch splash screen -->
 <layer-list xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:drawable="?android:colorBackground" />
+    <item android:drawable="@color/splash_bg" />
 
     <!-- You can insert your own image assets here -->
     <!-- <item>

flutter_app/android/app/src/main/res/drawable/launch_background.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- Modify this file to customize your launch splash screen -->
 <layer-list xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:drawable="@android:color/white" />
+    <item android:drawable="@color/splash_bg" />
 
     <!-- You can insert your own image assets here -->
     <!-- <item>

flutter_app/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>

flutter_app/android/app/src/main/res/values-night/styles.xml

@@ -5,6 +5,7 @@
         <!-- Show a splash screen on the activity. Automatically removed when
              the Flutter engine draws its first frame -->
         <item name="android:windowBackground">@drawable/launch_background</item>
+        <item name="android:windowSplashScreenBackground">@color/splash_bg</item>
     </style>
     <!-- Theme applied to the Android Window as soon as the process has started.
          This theme determines the color of the Android Window while your

flutter_app/android/app/src/main/res/values/colors.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="splash_bg">#d2242e</color>
+	<color name="ic_launcher_background">#d2242e</color>
+</resources>

flutter_app/android/app/src/main/res/values/styles.xml

@@ -5,6 +5,7 @@
         <!-- Show a splash screen on the activity. Automatically removed when
              the Flutter engine draws its first frame -->
         <item name="android:windowBackground">@drawable/launch_background</item>
+        <item name="android:windowSplashScreenBackground">@color/splash_bg</item>
     </style>
     <!-- Theme applied to the Android Window as soon as the process has started.
          This theme determines the color of the Android Window while your

flutter_app/pubspec.yaml

@@ -32,6 +32,8 @@ flutter_launcher_icons:
   ios: true
   image_path: "assets/logo/pozo_logo.jpg"
   remove_alpha_ios: true
+  adaptive_icon_background: "#d2242e"
+  adaptive_icon_foreground: "assets/logo/pozo_logo.jpg"
 
 flutter:
   uses-material-design: true