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
Catalog.parseDestDictionary({
        destDict: outlineDict,
        resultObj: data,
        docBaseUrl: this.pdfManager.docBaseUrl,
      });
      const title = outlineDict.get("Title");
      const flags = outlineDict.get("F") || 0;
      const color = outlineDict.getArray("C");
      const count = outlineDict.get("Count");
      let rgbColor = blackColor;
      
      if (
        Array.isArray(color) &&
        color.length === 3 &&
        (color[0] !== 0 || color[1] !== 0 || color[2] !== 0)
      ) {
        rgbColor = ColorSpace.singletons.rgb.getRgb(color, 0);
      }
      const outlineItem = {
        dest: data.dest,
        url: data.url,
        unsafeUrl: data.unsafeUrl,
        newWindow: data.newWindow,
        title: stringToPDFString(title),
        color: rgbColor,
        count: Number.isInteger(count) ? count : undefined,
        bold: !!(flags & 2),
        italic: !!(flags & 1),
        items: [],
      };