Flutter define Theme of `SliverAppBar`

I'm using a SliverAppBar instead of a normal AppBar but I couldn't find a way to define an App wide theme for a SliverAppBar.
Below is an excerpt of my ThemeData with the style of the AppBar:

theme.dart

appBarTheme: const AppBarTheme(
  elevation: 0.0,
  backgroundColor: Color(0xFFf7fbff),
  iconTheme: IconThemeData(
    color: Color(0xFF0B0C10),
  ),
),

I would be interested to know if it's possible to also theme the SliverAppBar the same as a normal AppBar?