android/ui: add support for themeing launcher icon

Updates tailscale/corp#19045

Signed-off-by: Percy Wegmann <percy@tailscale.com>

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

@@ -1,36 +1,38 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="108dp"
     android:height="108dp"
-    android:viewportWidth="100"
-    android:viewportHeight="100">
-  <group android:translateX="20"
-      android:translateY="20">
-    <path
-        android:pathData="M15,30.0002m-5,0a5,5 0,1 1,10 0a5,5 0,1 1,-10 0"
-        android:fillColor="#FFFDFA"/>
-    <path
-        android:pathData="M30,30.0002m-5,0a5,5 0,1 1,10 0a5,5 0,1 1,-10 0"
-        android:fillColor="#FFFDFA"/>
-    <path
-        android:pathData="M15,45.0002m-5,0a5,5 0,1 1,10 0a5,5 0,1 1,-10 0"
-        android:fillColor="#54514D"/>
-    <path
-        android:pathData="M45,45.0002m-5,0a5,5 0,1 1,10 0a5,5 0,1 1,-10 0"
-        android:fillColor="#54514D"/>
-    <path
-        android:pathData="M30,45.0002m-5,0a5,5 0,1 1,10 0a5,5 0,1 1,-10 0"
-        android:fillColor="#FFFDFA"/>
-    <path
-        android:pathData="M45,30.0002m-5,0a5,5 0,1 1,10 0a5,5 0,1 1,-10 0"
-        android:fillColor="#FFFDFA"/>
-    <path
-        android:pathData="M15,15.0002m-5,0a5,5 0,1 1,10 0a5,5 0,1 1,-10 0"
-        android:fillColor="#54514D"/>
-    <path
-        android:pathData="M30,14.9999m-5,0a5,5 0,1 1,10 0a5,5 0,1 1,-10 0"
-        android:fillColor="#54514D"/>
-    <path
-        android:pathData="M45,14.9999m-5,0a5,5 0,1 1,10 0a5,5 0,1 1,-10 0"
-        android:fillColor="#54514D"/>
-  </group>
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+  <path
+      android:pathData="M34.5,39.37a4.87,4.88 0,1 0,9.75 0a4.87,4.88 0,1 0,-9.75 0z"
+      android:fillColor="#ffffff"
+      android:fillAlpha="0.4"/>
+  <path
+      android:pathData="M49.13,39.37a4.87,4.88 0,1 0,9.75 0a4.87,4.88 0,1 0,-9.75 0z"
+      android:fillColor="#ffffff"
+      android:fillAlpha="0.4"/>
+  <path
+      android:pathData="M63.75,39.37a4.87,4.88 0,1 0,9.75 0a4.87,4.88 0,1 0,-9.75 0z"
+      android:fillColor="#ffffff"
+      android:fillAlpha="0.4"/>
+  <path
+      android:pathData="M34.5,54a4.87,4.88 0,1 0,9.75 0a4.87,4.88 0,1 0,-9.75 0z"
+      android:fillColor="#ffffff"/>
+  <path
+      android:pathData="M49.13,54a4.87,4.88 0,1 0,9.75 0a4.87,4.88 0,1 0,-9.75 0z"
+      android:fillColor="#ffffff"/>
+  <path
+      android:pathData="M63.75,54a4.87,4.88 0,1 0,9.75 0a4.87,4.88 0,1 0,-9.75 0z"
+      android:fillColor="#ffffff"/>
+  <path
+      android:pathData="M34.5,68.62a4.87,4.88 0,1 0,9.75 0a4.87,4.88 0,1 0,-9.75 0z"
+      android:fillColor="#ffffff"
+      android:fillAlpha="0.4"/>
+  <path
+      android:pathData="M49.13,68.62a4.87,4.88 0,1 0,9.75 0a4.87,4.88 0,1 0,-9.75 0z"
+      android:fillColor="#ffffff"/>
+  <path
+      android:pathData="M63.75,68.62a4.87,4.88 0,1 0,9.75 0a4.87,4.88 0,1 0,-9.75 0z"
+      android:fillColor="#ffffff"
+      android:fillAlpha="0.4"/>
 </vector>

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

@@ -2,4 +2,6 @@
 <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"/>
+
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
 </adaptive-icon>

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

@@ -2,4 +2,6 @@
 <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"/>
+
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
 </adaptive-icon>

android/src/main/res/values/ic_launcher_background.xml

@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <color name="ic_launcher_background">#1F2125</color>
+    <color name="ic_launcher_background">#1F1E1E</color>
 </resources>