code: private void obtainTint(@NonNull final TypedArray typedArray) {
          setIconTintList(
                  typedArray.getColorStateList(R.styleable.NavigationPreference_android_tint));
      }
docs: Obtains the color state list to tint the preference's icon from a specific typed array.
  
  @param typedArray
  The typed array, the color state list should be obtained from, as an instance of the
  class {@link TypedArray}. The typed array may not be null