accessibility_test library

Enums

ReadabilityLevel

Supported readability levels.

ThemeAccessibilityLevel

Supported accessibility levels.

Extensions

MinimumAcceptableContrast on ReadabilityLevel

Utilities for providing numeric values of guidelines.

Functions

calculateContrast(Color backgroundColor, Color foregroundColor) → num

Calculates contrast ratio of given backgroundColor and foregroundColor.

contrastTest(dynamic description, Color backgroundColor, Color foregroundColor, {ReadabilityLevel readabilityLevel = ReadabilityLevel.normal, dynamic tags}) → void

Creates a new contrast test case with the given description.

doesMatchMinContrastRatio(num ratio, {ReadabilityLevel readabilityLevel = ReadabilityLevel.normal}) → bool

Check whether given contrast ratio meet the minimum required value for given readabilityLevel.

runContrastTest(Color backgroundColor, Color foregroundColor, {ReadabilityLevel readabilityLevel = ReadabilityLevel.normal}) → void

Checks if given backgroundColor and foregroundColor meet minimum contrast ratio value for given readabilityLevel.

runThemeTest(ThemeData themeData, {ThemeAccessibilityLevel accessibilityLevel = ThemeAccessibilityLevel.normal}) → void

Scans through given themeData, looking for insufficient contrast values between text and background colors.

themeTest(dynamic description, ThemeData themeData, {ThemeAccessibilityLevel accessibilityLevel = ThemeAccessibilityLevel.normal, dynamic tags}) → void

Creates a new theme test case with the given description.