ThemeModifier constructor
Applies the given theme data to child.
The data and child arguments must not be null.
Implementation
const ThemeModifier({
  super.key,
  super.child,
  super.modifierKey,
  required this.data,
});Applies the given theme data to child.
The data and child arguments must not be null.
const ThemeModifier({
  super.key,
  super.child,
  super.modifierKey,
  required this.data,
});