Enable splash screen (launch screen)

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

 <?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" />
 
-    <!-- You can insert your own image assets here -->
-    <!-- <item>
+    <item>
         <bitmap
             android:gravity="center"
             android:src="@mipmap/launch_image" />
-    </item> -->
+    </item>
 </layer-list>

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

 <?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" />
 
-    <!-- You can insert your own image assets here -->
-    <!-- <item>
+    <item>
         <bitmap
             android:gravity="center"
             android:src="@mipmap/launch_image" />
-    </item> -->
+    </item>
 </layer-list>

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

 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on -->
     <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
-        <!-- Show a splash screen on the activity. Automatically removed when
-             Flutter draws its first frame -->
         <item name="android:windowBackground">@drawable/launch_background</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 UI initializes, as well as behind your Flutter UI while its
-         running.
-         
-         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:colorBackground</item>
     </style>

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

 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
     <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
-        <!-- Show a splash screen on the activity. Automatically removed when
-             Flutter draws its first frame -->
         <item name="android:windowBackground">@drawable/launch_background</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 UI initializes, as well as behind your Flutter UI while its
-         running.
-         
-         This Theme is only used starting with V2 of Flutter's Android embedding. -->
     <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
         <item name="android:windowBackground">?android:colorBackground</item>
     </style>

android/gradle.properties

 org.gradle.jvmargs=-Xmx1536M
 android.useAndroidX=true
 android.enableJetifier=true
-app.versionName=1.0.13
-app.versionCode=14
+app.versionName=1.0.14
+app.versionCode=15

icons/build_application_icons.sh

@@ -8,21 +8,28 @@ command -v optipng >/dev/null 2>&1 || { echo >&2 "I require optipng but it's not
 CURRENT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)"
 BASE_DIR="$(dirname "${CURRENT_DIR}")"
 
-SOURCE="${CURRENT_DIR}/icon.svg"
+SOURCE_ICON="${CURRENT_DIR}/icon.svg"
 SOURCE_FASTLANE="${CURRENT_DIR}/featureGraphic.svg"
+SOURCE_LAUNCH_IMAGE="${CURRENT_DIR}/icon.svg"
 
 OPTIPNG_OPTIONS="-preserve -quiet -o7"
 
-if [ ! -f "${SOURCE}" ]; then
-  echo "Missing file: ${SOURCE}"
+if [ ! -f "${SOURCE_ICON}" ]; then
+  echo "Missing file: ${SOURCE_ICON}"
 fi
 
 if [ ! -f "${SOURCE_FASTLANE}" ]; then
   echo "Missing file: ${SOURCE_FASTLANE}"
 fi
 
-# optimize svg
-cp ${SOURCE} ${SOURCE}.tmp
+if [ ! -f "${SOURCE_LAUNCH_IMAGE}" ]; then
+  echo "Missing file: ${SOURCE_LAUNCH_IMAGE}"
+fi
+
+function optimize_svg() {
+  SVG="$1"
+
+  cp ${SVG} ${SVG}.tmp
   scour \
       --remove-descriptive-elements \
       --enable-id-stripping \
@@ -30,12 +37,18 @@ scour \
       --enable-comment-stripping \
       --nindent=4 \
       --quiet \
-    -i ${SOURCE}.tmp \
-    -o ${SOURCE}
-rm ${SOURCE}.tmp
+      -i ${SVG}.tmp \
+      -o ${SVG}
+  rm ${SVG}.tmp
+}
+
+# optimize source svg files
+optimize_svg ${SOURCE_ICON}
+optimize_svg ${SOURCE_FASTLANE}
+optimize_svg ${SOURCE_LAUNCH_IMAGE}
 
 # build icons
-function build_icon() {
+function build_application_icon() {
   ICON_SIZE="$1"
   TARGET="$2"
 
@@ -60,18 +73,6 @@ function build_fastlane_image() {
 
   echo "Building ${TARGET}"
 
-  cp ${SOURCE_FASTLANE} ${SOURCE_FASTLANE}.tmp
-  scour \
-      --remove-descriptive-elements \
-      --enable-id-stripping \
-      --enable-viewboxing \
-      --enable-comment-stripping \
-      --nindent=4 \
-      --quiet \
-      -i ${SOURCE_FASTLANE}.tmp \
-      -o ${SOURCE_FASTLANE}
-  rm ${SOURCE_FASTLANE}.tmp
-
   TARGET_PNG="${TARGET}.png"
 
   inkscape \
@@ -83,11 +84,35 @@ function build_fastlane_image() {
   optipng ${OPTIPNG_OPTIONS} ${TARGET_PNG}
 }
 
-build_icon  72 ${BASE_DIR}/android/app/src/main/res/mipmap-hdpi/ic_launcher
-build_icon  48 ${BASE_DIR}/android/app/src/main/res/mipmap-mdpi/ic_launcher
-build_icon  96 ${BASE_DIR}/android/app/src/main/res/mipmap-xhdpi/ic_launcher
-build_icon 144 ${BASE_DIR}/android/app/src/main/res/mipmap-xxhdpi/ic_launcher
-build_icon 192 ${BASE_DIR}/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher
-build_icon 512 ${BASE_DIR}/fastlane/metadata/android/en-US/images/icon
+# build launch images (splash screen)
+function build_launch_image() {
+  ICON_SIZE="$1"
+  TARGET="$2"
+
+  echo "Building ${TARGET}"
+
+  TARGET_PNG="${TARGET}.png"
+
+  inkscape \
+      --export-width=${ICON_SIZE} \
+      --export-height=${ICON_SIZE} \
+      --export-filename=${TARGET_PNG} \
+      ${SOURCE}
+
+  optipng ${OPTIPNG_OPTIONS} ${TARGET_PNG}
+}
+
+build_application_icon  72 ${BASE_DIR}/android/app/src/main/res/mipmap-hdpi/ic_launcher
+build_application_icon  48 ${BASE_DIR}/android/app/src/main/res/mipmap-mdpi/ic_launcher
+build_application_icon  96 ${BASE_DIR}/android/app/src/main/res/mipmap-xhdpi/ic_launcher
+build_application_icon 144 ${BASE_DIR}/android/app/src/main/res/mipmap-xxhdpi/ic_launcher
+build_application_icon 192 ${BASE_DIR}/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher
+build_application_icon 512 ${BASE_DIR}/fastlane/metadata/android/en-US/images/icon
+
+build_launch_image  72 ${BASE_DIR}/android/app/src/main/res/mipmap-hdpi/launch_image
+build_launch_image  48 ${BASE_DIR}/android/app/src/main/res/mipmap-mdpi/launch_image
+build_launch_image  96 ${BASE_DIR}/android/app/src/main/res/mipmap-xhdpi/launch_image
+build_launch_image 144 ${BASE_DIR}/android/app/src/main/res/mipmap-xxhdpi/launch_image
+build_launch_image 192 ${BASE_DIR}/android/app/src/main/res/mipmap-xxxhdpi/launch_image
 
 build_fastlane_image 1024 500 ${BASE_DIR}/fastlane/metadata/android/en-US/images/featureGraphic