Pull highlighted text out of doc

I have a doc field which has some highlighted sections. Can I create another field and use a formula to pull out these highlights?

Unfortunately it is not possible to access parts of rich text in Fibery via API or Formulas.

Just to be clear, it is possible to get the contents of a rich text field (using a script like below) but it is not possible to see from the resultant markdown which bits of the text have been highlighted.

const fibery = context.getService('fibery');
for (const entity of args.currentEntities) {
    const x = await fibery.getEntityById(entity.Type, entity.Id, ['Name', 'Description']);
    const markdownContent = await fibery.getDocumentContent(x["Description"].secret, `md`);
    console.log(markdownContent);
};

I can do this in Coda like so:

ParseJson(thisRow.Notes._Merge() + "", "$..[?(@.highlight == 'Yellow')].text")

Would be nice to have this in Fibery!