# WidgetHighlightStackChangeEventData

typedef

Additional information about the change.

[See source](https://github.com/ckeditor/ckeditor5/blob/master/packages/ckeditor5-widget/src/highlightstack.ts#L165)

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## Properties

<a id="member-newDescriptor">

### `newDescriptor: DowncastHighlightDescriptor`

New highlight descriptor. It will be `undefined` when last descriptor is removed from the stack.

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### `oldDescriptor: DowncastHighlightDescriptor`

Old highlight descriptor. It will be `undefined` when first descriptor is added to the stack.

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### `writer: ViewDowncastWriter`

View writer that can be used to modify element.

#### Value

`object`

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Full index of the CKEditor 5 API reference: [llms.txt](llms.txt)