Update app icon.

app/src/main/res/drawable/ic_launcher_foreground.xml

+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportHeight="1055.0303"
+    android:viewportWidth="1055.0303">
+
+    <group
+        android:translateX="281.28394"
+        android:translateY="271.51514">
+        <path
+            android:fillColor="#CC3333"
+            android:pathData="M491.3,255.3c0,-24.1 -7.2,-47.2 -21.4,-68.7c-12.8,-19.3 -30.7,-36.4 -53.2,-50.7c-43.5,-27.8 -100.6,-43.1 -160.9,-43.1c-20.1,0 -40,1.7 -59.2,5.1c-11.9,-11.2 -25.9,-21.2 -40.7,-29.2c-79,-38.3 -144.6,-0.9 -144.6,-0.9s60.9,50.1 51,93.9c-27.3,27 -42,59.6 -42,93.6c0,0.1 0,0.2 0,0.3c0,0.1 0,0.2 0,0.3c0,33.9 14.8,66.6 42,93.6c9.9,43.9 -51,93.9 -51,93.9s65.5,37.4 144.6,-0.9c14.8,-8 28.8,-18 40.7,-29.2c19.2,3.4 39.1,5.1 59.2,5.1c60.3,0 117.4,-15.3 160.9,-43.1c22.5,-14.4 40.4,-31.5 53.2,-50.7c14.2,-21.5 21.4,-44.6 21.4,-68.7c0,-0.1 0,-0.2 0,-0.3C491.3,255.6 491.3,255.4 491.3,255.3z" />
+        <path
+            android:fillColor="#FFFFFF"
+            android:pathData="M255.9,124.2c113.9,0 206.3,59 206.3,131.8c0,72.8 -92.4,131.8 -206.3,131.8c-25.4,0 -49.7,-2.9 -72.1,-8.3c-22.8,27.4 -73,65.6 -121.7,53.3c15.9,-17 39.4,-45.8 34.3,-93.2c-29.2,-22.7 -46.8,-51.8 -46.8,-83.5C49.6,183.2 142,124.2 255.9,124.2" />
+        <path
+            android:fillColor="#CC3333"
+            android:pathData="M255.9,256m-27.4,0a27.4,27.4 0,1 1,54.8 0a27.4,27.4 0,1 1,-54.8 0" />
+        <path
+            android:fillColor="#CC3333"
+            android:pathData="M351.2,256m-27.4,0a27.4,27.4 0,1 1,54.8 0a27.4,27.4 0,1 1,-54.8 0" />
+        <path
+            android:fillColor="#CC3333"
+            android:pathData="M160.6,256m-27.4,0a27.4,27.4 0,1 1,54.8 0a27.4,27.4 0,1 1,-54.8 0" />
+        <path
+            android:fillColor="#CCCCCC"
+            android:pathData="M255.8,372.8c-25.4,0 -56.2,-4.9 -78.7,-9.5c-20.1,21 -53.7,52.7 -99.6,50.3c-5.7,8.6 -10.2,13.5 -15.5,19.2c48.7,12.3 98.9,-25.8 121.7,-53.3c22.4,5.4 46.7,8.3 72.1,8.3c113,0 204.8,-58.1 206.3,-130C460.7,320.1 368.8,372.8 255.8,372.8z" />
+        <path
+            android:fillColor="#00000000"
+            android:pathData="M172,350.9"
+            android:strokeColor="#000000"
+            android:strokeWidth="1" />
+        <path
+            android:fillColor="#00000000"
+            android:pathData="M200.4,422.9"
+            android:strokeColor="#000000"
+            android:strokeWidth="1" />
+    </group>
+</vector>

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

 <?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"/>
+    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
 </adaptive-icon>
\ No newline at end of file

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

 <?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"/>
+    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
 </adaptive-icon>
\ No newline at end of file

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

 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <color name="ic_launcher_background">#15293F</color>
 
     <!-- Main colors -->
     <color name="colorPrimary">#FF303030</color> <!-- Material Grey 850 -->
@@ -17,6 +16,8 @@
     <color name="colorUserStatusAway">#FDD236</color>
     <color name="colorUserStatusOffline">#d9d9d9</color>
 
+    <color name="ic_launcher_background">#FFFFFF</color>
+
     <color name="colorDrawableTintGrey">#9FA2A8</color>
 
     <color name="colorDividerMessageComposer">#D8D8D8</color>