SheenColors class Foundation

The colours of a sheen theme, one set per brightness.

Build a palette with SheenColors.light or SheenColors.dark and an accent; change single colours with copyWith. Every text colour reads at WCAG AA (4.5:1) on background and surface.

Mixed-in types

Annotations

Constructors

SheenColors({required Color background, required Color surface, required Color surfaceMuted, required Color track, required Color separator, required Color text, required Color textSecondary, required Color textTertiary, required Color accent, required Color onAccent, required Color accentText, required Color success, required Color warning, required Color danger, required Color rating, required Color sheet}): A palette from its parts. Prefer SheenColors.light and SheenColors.dark, which derive the accent colours.
const
SheenColors.dark({Color accent = defaultDarkAccent}): The dark palette.
factory
SheenColors.light({Color accent = defaultLightAccent}): The light palette.
factory

accent → Color: The accent fill: prominent glass, primary buttons, selected states, the switch. Labels on it use onAccent.
final
accentText → Color: Accent-coloured text and icons on background or surface: links, selected tab labels. Never put white text on it.
final
background → Color: The page ground.
final
danger → Color: Errors, destructive actions and the last moments of a countdown.
final
hashCode → int: The hash code for this object.
no setteroverride
onAccent → Color: Labels and icons drawn on accent.
final
rating → Color: Star rating glyphs.
final
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
separator → Color: Hairline separators.
final
sheet → Color: The background of sheets and dialogs.
final
success → Color: Positive states: success, available, included, free cancellation.
final
surface → Color: Cards, lists and grouped rows.
final
surfaceMuted → Color: Inputs, secondary buttons and surfaces nested in a surface.
final
text → Color: Primary text and icons.
final
textSecondary → Color: Secondary text: subtitles, captions, values next to a label.
final
textTertiary → Color: Tertiary text: hints, placeholders, disabled labels.
final
track → Color: Tracks of sliders, progress bars and switches; skeleton placeholders.
final
warning → Color: Caution states: time running out, conditions apply.
final

copyWith({Color? background, Color? surface, Color? surfaceMuted, Color? track, Color? separator, Color? text, Color? textSecondary, Color? textTertiary, Color? accent, Color? onAccent, Color? accentText, Color? success, Color? warning, Color? danger, Color? rating, Color? sheet}) → SheenColors: A copy with the given colours replaced.
debugFillProperties(DiagnosticPropertiesBuilder properties) → void: Add additional properties associated with the node.
override
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode: Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
inherited
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String: A string representation of this object.
inherited
toStringShort() → String: A brief description of this object, usually just the runtimeType and the hashCode.
inherited

contrastOf(Color a, Color b) → double: The WCAG contrast ratio of two opaque colours, from 1 to 21.
lerp(SheenColors a, SheenColors b, double t) → SheenColors: Blends every colour of a and b at t (0 gives a, 1 gives b).
liftedFor(Color color, Color ground) → Color: color mixed with white in 5 % steps until it reaches 4.5:1 contrast on ground.
onColorFor(Color color) → Color: White or near-black, whichever reads better on color.

defaultDarkAccent → const Color: The default accent of the dark theme.
defaultLightAccent → const Color: The default accent of the light theme, a blue with 5.6:1 contrast on white.