Fix overflow button colors

app/src/main/res/layout/toolbar.xml

@@ -7,7 +7,7 @@
   android:background="?attr/colorPrimary"
   android:elevation="@dimen/elevation_toolbar"
   android:theme="?attr/overlay_theme"
-  app:titleTextColor="?attr/colorOnPrimary"
   app:popupTheme="@style/popup_overlay"
+  app:titleTextColor="?attr/colorOnPrimary"
   app:toolbarStyle="@style/Widget.MaterialComponents.Toolbar"
-  tools:ignore="UnusedAttribute"/>
+  tools:ignore="UnusedAttribute" />

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

@@ -31,6 +31,7 @@
     <item name="overlay_theme">@style/WhiteToolbarOverlay</item>
     <item name="colorOnPrimary">@color/white_100</item>
     <item name="colorOnPrimaryHint">@color/white_70</item>
+    <item name="android:actionOverflowButtonStyle">@style/WhiteOverflow</item>
   </style>
 
   <style name="BlackToolbarTheme">
@@ -38,6 +39,7 @@
     <item name="overlay_theme">@style/BlackToolbarOverlay</item>
     <item name="colorOnPrimary">@color/black_87</item>
     <item name="colorOnPrimaryHint">@color/black_54</item>
+    <item name="android:actionOverflowButtonStyle">@style/BlackOverflow</item>
   </style>
 
   <style name="WhiteTint">
@@ -48,6 +50,14 @@
     <item name="colorOnSecondary">@color/black_87</item>
   </style>
 
+  <style name="WhiteOverflow" parent="Widget.AppCompat.Light.ActionButton.Overflow">
+    <item name="android:tint">@color/white_100</item>
+  </style>
+
+  <style name="BlackOverflow" parent="Widget.AppCompat.Light.ActionButton.Overflow">
+    <item name="android:tint">@color/black_87</item>
+  </style>
+
   <style name="WhiteToolbarOverlay" parent="@style/ThemeOverlay.MaterialComponents.Dark.ActionBar">
     <item name="colorControlNormal">@color/white_100</item>
     <item name="android:textColorHint">@color/white_100</item>