code: public final void setIconTintMode(@NonNull final PorterDuff.Mode tintMode) {
          Condition.INSTANCE.ensureNotNull(tintMode, "The tint mode may not be null");
          this.tintMode = tintMode;
          adaptIconTint();
      }
docs: Sets the mode, which should be used to tint the preference's icon.
  
  @param tintMode
  The mode, which should be set, as a value of the enum {@link PorterDuff.Mode}. The
  mode may not be null