onSurface property
Implementation
@override
DynamicColor get onSurface => DynamicColor(
name: "on_surface",
palette: (scheme) => scheme.neutralPalette,
tone: (scheme) => scheme.isDark ? 90.0 : 10.0,
background: highestSurface,
contrastCurve: (_) => const ContrastCurve(4.5, 7.0, 11.0, 21.0),
);