The spec for this action:
https://www.adobe.com/content/dam/acom/en/devnet/pdf/pdfs/PDF32000_2008.pdf#G11.2111850
An example of a form using this action:
https://www2.illinois.gov/rev/forms/reg/Documents/reg-1-mr.pdf
}
      },
      bgColor: event => {
        setColor("bgColor", "backgroundColor", event);
      },
      fillColor: event => {
        setColor("fillColor", "backgroundColor", event);
      },
      fgColor: event => {
        setColor("fgColor", "color", event);
      },
      textColor: event => {
        setColor("textColor", "color", event);
      },
      borderColor: event => {
        setColor("borderColor", "borderColor", event);
      },
      strokeColor: event => {
        setColor("strokeColor", "borderColor", event);
      },
    };
    for (const name of Object.keys(jsEvent.detail)) {
      const action = actions[name] || commonActions[name];
      if (action) {
        action(jsEvent);
      }
    }
  }
}
class TextWidgetAnnotationElement extends WidgetAnnotationElement {