actionsIconTheme property
The color, opacity, and size to use for the icons that appear in the app bar's actions. This should only be used when the actions should be themed differently than the icon that appears in the app bar's leading widget.
If this property is null, then ThemeData.appBarTheme.actionsIconTheme is
used, if that is also null, then this falls back to iconTheme.
Implementation
final IconThemeData? actionsIconTheme;