Changing the color of navigation drawer group title text

Question

I want to change the color of Title1 in the navigation drawer

Answer 1

It is based on the android:textColorSecondary color.

You can define something like:

<com.google.android.material.navigation.NavigationView
    android:theme="@style/ThemeOverlay.ItemGroup"
    ..>

with:

  <style name="ThemeOverlay.ItemGroup" parent="">
    <item name="android:textColorSecondary">@color/....</item>
  </style>