Extract launcher icon tints and provide `-night` alternatives

Implements #805

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

@@ -21,5 +21,5 @@
     android:viewportHeight="108">
   <path
       android:pathData="M0,0h108v108h-108z"
-      android:fillColor="#000000"/>
+      android:fillColor="@color/ic_launcher_background_tint"/>
 </vector>

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

@@ -21,9 +21,9 @@
     android:viewportHeight="108">
   <path
       android:pathData="M65.08,84.13C64.01,84.13 63.13,83.26 63.13,82.18C63.13,81.11 64,80.24 65.08,80.24C66.15,80.24 67.02,81.11 67.02,82.18C67.02,83.26 66.15,84.13 65.08,84.13ZM43.6,84.13C42.53,84.13 41.65,83.26 41.65,82.18C41.65,81.11 42.52,80.24 43.6,80.24C44.66,80.24 45.54,81.11 45.54,82.18C45.54,83.26 44.67,84.13 43.6,84.13ZM65.77,72.44L69.66,65.73C69.88,65.35 69.74,64.85 69.36,64.63C68.97,64.41 68.48,64.54 68.25,64.93L64.32,71.73C61.31,70.36 57.94,69.59 54.33,69.59C50.73,69.59 47.35,70.36 44.34,71.73L40.41,64.93C40.19,64.54 39.69,64.41 39.31,64.63C38.92,64.85 38.79,65.35 39.01,65.73L42.89,72.44C36.22,76.07 31.67,82.81 31,90.77H77.67C77,82.8 72.44,76.06 65.77,72.44Z"
-      android:fillColor="#FCFCFC"/>
+      android:fillColor="@color/ic_launcher_foreground_tint"/>
   <path
       android:pathData="M46.57,35H46.57C46.1,35 45.72,35.38 45.72,35.85L45.72,43.15H44.19C43.35,43.15 42.67,43.83 42.67,44.68C42.67,45.52 43.35,46.2 44.19,46.2H45.72V43.15H47.42C48.17,43.15 48.78,42.54 48.78,41.79L48.78,37.72H49.97C50.43,37.72 50.81,37.34 50.81,36.87V35.85C50.81,35.38 50.43,35 49.97,35H47.42H46.57ZM46.57,54.35H46.57H47.42H49.97C50.43,54.35 50.81,53.97 50.81,53.5V52.48C50.81,52.02 50.43,51.64 49.97,51.64H48.78L48.78,47.56C48.78,46.81 48.17,46.2 47.42,46.2H45.72L45.72,53.5C45.72,53.97 46.1,54.35 46.57,54.35ZM61.54,35H61.54C62.01,35 62.39,35.38 62.39,35.85V43.15H63.92C64.76,43.15 65.44,43.83 65.44,44.68C65.44,45.52 64.76,46.2 63.92,46.2H62.39V43.15H60.69C59.94,43.15 59.33,42.54 59.33,41.79V37.72H58.15C57.68,37.72 57.3,37.34 57.3,36.87V35.85C57.3,35.38 57.68,35 58.15,35H60.69H61.54ZM61.54,54.35H61.54H60.69H58.15C57.68,54.35 57.3,53.97 57.3,53.5V52.48C57.3,52.02 57.68,51.64 58.15,51.64H59.33V47.56C59.33,46.81 59.94,46.2 60.69,46.2H62.39V53.5C62.39,53.97 62.01,54.35 61.54,54.35Z"
-      android:fillColor="#FCFCFC"
+      android:fillColor="@color/ic_launcher_foreground_tint"
       android:fillType="evenOdd"/>
 </vector>

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

@@ -22,13 +22,13 @@
 
     <path
         android:pathData="M0,0h108v108h-108z"
-        android:fillColor="#000000"/>
+        android:fillColor="@color/ic_launcher_background_tint"/>
     <path
         android:pathData="M65.08,84.13C64.01,84.13 63.13,83.26 63.13,82.18C63.13,81.11 64,80.24 65.08,80.24C66.15,80.24 67.02,81.11 67.02,82.18C67.02,83.26 66.15,84.13 65.08,84.13ZM43.6,84.13C42.53,84.13 41.65,83.26 41.65,82.18C41.65,81.11 42.52,80.24 43.6,80.24C44.66,80.24 45.54,81.11 45.54,82.18C45.54,83.26 44.67,84.13 43.6,84.13ZM65.77,72.44L69.66,65.73C69.88,65.35 69.74,64.85 69.36,64.63C68.97,64.41 68.48,64.54 68.25,64.93L64.32,71.73C61.31,70.36 57.94,69.59 54.33,69.59C50.73,69.59 47.35,70.36 44.34,71.73L40.41,64.93C40.19,64.54 39.69,64.41 39.31,64.63C38.92,64.85 38.79,65.35 39.01,65.73L42.89,72.44C36.22,76.07 31.67,82.81 31,90.77H77.67C77,82.8 72.44,76.06 65.77,72.44Z"
-        android:fillColor="#FCFCFC"/>
+        android:fillColor="@color/ic_launcher_foreground_tint"/>
     <path
         android:pathData="M46.57,35H46.57C46.1,35 45.72,35.38 45.72,35.85L45.72,43.15H44.19C43.35,43.15 42.67,43.83 42.67,44.68C42.67,45.52 43.35,46.2 44.19,46.2H45.72V43.15H47.42C48.17,43.15 48.78,42.54 48.78,41.79L48.78,37.72H49.97C50.43,37.72 50.81,37.34 50.81,36.87V35.85C50.81,35.38 50.43,35 49.97,35H47.42H46.57ZM46.57,54.35H46.57H47.42H49.97C50.43,54.35 50.81,53.97 50.81,53.5V52.48C50.81,52.02 50.43,51.64 49.97,51.64H48.78L48.78,47.56C48.78,46.81 48.17,46.2 47.42,46.2H45.72L45.72,53.5C45.72,53.97 46.1,54.35 46.57,54.35ZM61.54,35H61.54C62.01,35 62.39,35.38 62.39,35.85V43.15H63.92C64.76,43.15 65.44,43.83 65.44,44.68C65.44,45.52 64.76,46.2 63.92,46.2H62.39V43.15H60.69C59.94,43.15 59.33,42.54 59.33,41.79V37.72H58.15C57.68,37.72 57.3,37.34 57.3,36.87V35.85C57.3,35.38 57.68,35 58.15,35H60.69H61.54ZM61.54,54.35H61.54H60.69H58.15C57.68,54.35 57.3,53.97 57.3,53.5V52.48C57.3,52.02 57.68,51.64 58.15,51.64H59.33V47.56C59.33,46.81 59.94,46.2 60.69,46.2H62.39V53.5C62.39,53.97 62.01,54.35 61.54,54.35Z"
-        android:fillColor="#FCFCFC"
+        android:fillColor="@color/ic_launcher_foreground_tint"
         android:fillType="evenOdd"/>
 
 </vector>

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

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright 2021 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<resources>
+    <color name="ic_launcher_background_tint">#FCFCFC</color>
+    <color name="ic_launcher_foreground_tint">#000000</color>
+</resources>

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

@@ -17,4 +17,7 @@
 <resources>
     <!-- Status bar -->
     <color name="black30">#4D000000</color>
+
+    <color name="ic_launcher_background_tint">#000000</color>
+    <color name="ic_launcher_foreground_tint">#FCFCFC</color>
 </resources>