| // GENERATED CONTENT - DO NOT EDIT | 
 | // Content was automatically extracted by Reffy into webref | 
 | // (https://github.com/w3c/webref) | 
 | // Source: Ink API (https://wicg.github.io/ink-enhancement/) | 
 |  | 
 | [Exposed=Window] | 
 | interface Ink { | 
 |     Promise<DelegatedInkTrailPresenter> requestPresenter( | 
 |         optional InkPresenterParam param = {}); | 
 | }; | 
 |  | 
 | dictionary InkPresenterParam { | 
 |     Element? presentationArea = null; | 
 | }; | 
 |  | 
 | [Exposed=Window] | 
 | interface DelegatedInkTrailPresenter { | 
 |     readonly attribute Element? presentationArea; | 
 |  | 
 |     undefined updateInkTrailStartPoint(PointerEvent event, InkTrailStyle style); | 
 | }; | 
 |  | 
 | dictionary InkTrailStyle { | 
 |     required DOMString color; | 
 |     required unrestricted double diameter; | 
 | }; | 
 |  | 
 | [Exposed=Window] | 
 | partial interface Navigator { | 
 |     [SameObject] readonly attribute Ink ink; | 
 | }; |