Added minor fixes to resources and build scripts

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

@@ -1,11 +1,9 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="24dp"
     android:height="24dp"
-    android:autoMirrored="true"
-    android:tint="@color/accent"
     android:viewportWidth="24"
     android:viewportHeight="24">
     <path
-        android:fillColor="@android:color/white"
+        android:fillColor="@color/accent"
         android:pathData="M12,2C8.13,2 5,5.13 5,9c0,5.25 7,13 7,13s7,-7.75 7,-13c0,-3.87 -3.13,-7 -7,-7zM12,11.5c-1.38,0 -2.5,-1.12 -2.5,-2.5s1.12,-2.5 2.5,-2.5 2.5,1.12 2.5,2.5 -1.12,2.5 -2.5,2.5z" />
 </vector>