copyWith method

GutterTheme copyWith({
  1. double gutterCalc(
    1. double screenWidth
    )?,
  2. bool? enabled,
})

Creates a copy of this GutterTheme with the given fields replaced.

Provides immutable updates for theme extensions, commonly used in ArcaneTheme overrides or local customizations. Inputs: Optional gutterCalc function to redefine width calculation, and enabled bool to toggle default state. Output: A new GutterTheme instance with merged values, preserving originals where unspecified. No state interactions; purely functional for building variant themes without mutation.

Implementation

GutterTheme copyWith(
        {double Function(double screenWidth)? gutterCalc, bool? enabled}) =>
    GutterTheme(
        gutterCalc: gutterCalc ?? this.gutterCalc,
        enabled: enabled ?? this.enabled);