How to globally override default Colors.blue color for the ThemeData?

Question

In flutter even when I set

primaryColor: Colors.orange,

then in some part of the UI the default Colors.blue is still present. Is there a way how to globally override it for the ThemeData?

Answer 1

In order for me to override Colors.blue, I had to state primarySwatch in the ThemeData and also the colorScheme, as in

theme: ThemeData(
  primarySwatch: Colors.orange,
  colorScheme: ColorScheme.fromSwatch(primarySwatch: Colors.orange),
),