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Accessibility

The TreeMap component provides built-in compliance with WAI-ARIA specifications. The WAI-ARIA accessibility supports are achieved using attributes such as aria-label. It helps to provide information about elements in a document for assistive technology.

Aria-label:

This attribute provides text label with some default description for the following elements in TreeMap.

Element Default description
TreeMap container -
TreeMap Title Reads the TreeMap title
TreeMap Subtitle Reads the TreeMap subtitle
Legend Title Reads the legend title

You can change this default description using the description property available in TreeMapLegendSettings, TreeMapTitleSettings, TreeMapSubTitleSettings, and EjsTreeMap tags. It helps screen readers to read for assistive purpose.