flutter: Android: Set splash screen color to aths_special

src/ui/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/aths_special" />
 
     <!-- You can insert your own image assets here -->
     <!-- <item>

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

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?> 
+<resources> 
+    <color name="white">#ffffff</color> 
+    <color name="black">#000000</color>
+    <color name="asparagus">#769656</color>
+    <color name="aths_special">#eeeed2</color>
+</resources>

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

@@ -13,6 +13,6 @@
          
          This Theme is only used starting with V2 of Flutter's Android embedding. -->
     <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
-        <item name="android:windowBackground">@android:color/white</item>
+        <item name="android:windowBackground">@color/aths_special</item>
     </style>
 </resources>

src/ui/flutter_app/lib/style/colors.dart

@@ -22,8 +22,8 @@ class UIColors {
   // see:
   // https://www.color-hex.com/color-palette/8548
   // https://applecolors.com/palette/30822-chess-board-logo
-  static const asparagusColor = Color.fromARGB(0xFF, 118, 150, 86);
-  static const athsSpecialColor = Color.fromARGB(0xFF, 238, 238, 210);
+  static const asparagusColor = Color.fromARGB(0xFF, 118, 150, 86); // 769656
+  static const athsSpecialColor = Color.fromARGB(0xFF, 238, 238, 210); // eeeed2
   static const turmericColor = Color.fromARGB(0xFF, 186, 202, 68);
 
   static const logoColor = Color(0xFF6D000D);