Accessibility in Flutter Funnel Chart

6 Aug 20261 minute to read

Sufficient contrast

The SfFunnelChart theming support offers a consistent and standardized look, as well as the ability to set the colors for all UI elements.

You can customize colors for the following chart elements.

• Chart title
• Palette for data points
• Color mapping for data points
• Data label
• Legend title
• Legend item text
• Series tooltip
• Selected segments

Large fonts

The SfFunnelChart font size can be adjusted automatically based on device settings, and the font size is scaled based on the MediaQueryData.textScaler. It also allows you to change the font size of all elements in the funnel chart.

• Chart title
• Data labels
• Legend title
• Legend item text
• Series tooltip

Easily tappable targets

The SfFunnelChart provides callback support to notify when essential chart elements are tapped.

• Data points
• Data labels
• Legend