diff --git a/sskr/android/app/src/main/AndroidManifest.xml b/sskr/android/app/src/main/AndroidManifest.xml
index dc26371..5551057 100644
--- a/sskr/android/app/src/main/AndroidManifest.xml
+++ b/sskr/android/app/src/main/AndroidManifest.xml
@@ -1,6 +1,6 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.bc.sskr">
 
-    <application android:allowBackup="true" />
+    <application/>
 
 </manifest>
\ No newline at end of file
diff --git a/sskr/android/app/src/main/res/drawable-v24/ic_launcher_foreground.xml b/sskr/android/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
deleted file mode 100644
index 2b068d1..0000000
--- a/sskr/android/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
+++ /dev/null
@@ -1,30 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:aapt="http://schemas.android.com/aapt"
-    android:width="108dp"
-    android:height="108dp"
-    android:viewportWidth="108"
-    android:viewportHeight="108">
-    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
-        <aapt:attr name="android:fillColor">
-            <gradient
-                android:endX="85.84757"
-                android:endY="92.4963"
-                android:startX="42.9492"
-                android:startY="49.59793"
-                android:type="linear">
-                <item
-                    android:color="#44000000"
-                    android:offset="0.0" />
-                <item
-                    android:color="#00000000"
-                    android:offset="1.0" />
-            </gradient>
-        </aapt:attr>
-    </path>
-    <path
-        android:fillColor="#FFFFFF"
-        android:fillType="nonZero"
-        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
-        android:strokeWidth="1"
-        android:strokeColor="#00000000" />
-</vector>
\ No newline at end of file
diff --git a/sskr/android/app/src/main/res/drawable/ic_launcher_background.xml b/sskr/android/app/src/main/res/drawable/ic_launcher_background.xml
deleted file mode 100644
index 07d5da9..0000000
--- a/sskr/android/app/src/main/res/drawable/ic_launcher_background.xml
+++ /dev/null
@@ -1,170 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="108dp"
-    android:height="108dp"
-    android:viewportWidth="108"
-    android:viewportHeight="108">
-    <path
-        android:fillColor="#3DDC84"
-        android:pathData="M0,0h108v108h-108z" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M9,0L9,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M19,0L19,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M29,0L29,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M39,0L39,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M49,0L49,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M59,0L59,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M69,0L69,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M79,0L79,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M89,0L89,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M99,0L99,108"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,9L108,9"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,19L108,19"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,29L108,29"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,39L108,39"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,49L108,49"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,59L108,59"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,69L108,69"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,79L108,79"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,89L108,89"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M0,99L108,99"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M19,29L89,29"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M19,39L89,39"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M19,49L89,49"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M19,59L89,59"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M19,69L89,69"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M19,79L89,79"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M29,19L29,89"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M39,19L39,89"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M49,19L49,89"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M59,19L59,89"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M69,19L69,89"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-    <path
-        android:fillColor="#00000000"
-        android:pathData="M79,19L79,89"
-        android:strokeWidth="0.8"
-        android:strokeColor="#33FFFFFF" />
-</vector>
diff --git a/sskr/android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/sskr/android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
deleted file mode 100644
index eca70cf..0000000
--- a/sskr/android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
+++ /dev/null
@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@drawable/ic_launcher_background" />
-    <foreground android:drawable="@drawable/ic_launcher_foreground" />
-</adaptive-icon>
\ No newline at end of file
diff --git a/sskr/android/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml b/sskr/android/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
deleted file mode 100644
index eca70cf..0000000
--- a/sskr/android/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
+++ /dev/null
@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@drawable/ic_launcher_background" />
-    <foreground android:drawable="@drawable/ic_launcher_foreground" />
-</adaptive-icon>
\ No newline at end of file
diff --git a/sskr/android/app/src/main/res/mipmap-hdpi/ic_launcher.png b/sskr/android/app/src/main/res/mipmap-hdpi/ic_launcher.png
deleted file mode 100644
index a571e60..0000000
Binary files a/sskr/android/app/src/main/res/mipmap-hdpi/ic_launcher.png and /dev/null differ
diff --git a/sskr/android/app/src/main/res/mipmap-hdpi/ic_launcher_round.png b/sskr/android/app/src/main/res/mipmap-hdpi/ic_launcher_round.png
deleted file mode 100644
index 61da551..0000000
Binary files a/sskr/android/app/src/main/res/mipmap-hdpi/ic_launcher_round.png and /dev/null differ
diff --git a/sskr/android/app/src/main/res/mipmap-mdpi/ic_launcher.png b/sskr/android/app/src/main/res/mipmap-mdpi/ic_launcher.png
deleted file mode 100644
index c41dd28..0000000
Binary files a/sskr/android/app/src/main/res/mipmap-mdpi/ic_launcher.png and /dev/null differ
diff --git a/sskr/android/app/src/main/res/mipmap-mdpi/ic_launcher_round.png b/sskr/android/app/src/main/res/mipmap-mdpi/ic_launcher_round.png
deleted file mode 100644
index db5080a..0000000
Binary files a/sskr/android/app/src/main/res/mipmap-mdpi/ic_launcher_round.png and /dev/null differ
diff --git a/sskr/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png b/sskr/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png
deleted file mode 100644
index 6dba46d..0000000
Binary files a/sskr/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png and /dev/null differ
diff --git a/sskr/android/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png b/sskr/android/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
deleted file mode 100644
index da31a87..0000000
Binary files a/sskr/android/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png and /dev/null differ
diff --git a/sskr/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png b/sskr/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
deleted file mode 100644
index 15ac681..0000000
Binary files a/sskr/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png and /dev/null differ
diff --git a/sskr/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png b/sskr/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
deleted file mode 100644
index b216f2d..0000000
Binary files a/sskr/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png and /dev/null differ
diff --git a/sskr/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/sskr/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
deleted file mode 100644
index f25a419..0000000
Binary files a/sskr/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png and /dev/null differ
diff --git a/sskr/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png b/sskr/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
deleted file mode 100644
index e96783c..0000000
Binary files a/sskr/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png and /dev/null differ
diff --git a/sskr/android/app/src/main/res/values/colors.xml b/sskr/android/app/src/main/res/values/colors.xml
deleted file mode 100644
index 4faecfa..0000000
--- a/sskr/android/app/src/main/res/values/colors.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <color name="colorPrimary">#6200EE</color>
-    <color name="colorPrimaryDark">#3700B3</color>
-    <color name="colorAccent">#03DAC5</color>
-</resources>
\ No newline at end of file
diff --git a/sskr/android/app/src/main/res/values/strings.xml b/sskr/android/app/src/main/res/values/strings.xml
deleted file mode 100644
index e5f8fdc..0000000
--- a/sskr/android/app/src/main/res/values/strings.xml
+++ /dev/null
@@ -1,2 +0,0 @@
-<resources>
-</resources>
\ No newline at end of file
diff --git a/sskr/android/app/src/main/res/values/styles.xml b/sskr/android/app/src/main/res/values/styles.xml
deleted file mode 100644
index e5f8fdc..0000000
--- a/sskr/android/app/src/main/res/values/styles.xml
+++ /dev/null
@@ -1,2 +0,0 @@
-<resources>
-</resources>
\ No newline at end of file