These are the annotations that can be used for text blocks.

      Bold Annotation

        type: "bold"

      Italic Annotation

        type: "italic"

      Underline Annotation

        type: "underline"

      Strikethrough Annotation

        type: "strike"

      Code Annotation

        type: "code"

      Link Annotation

        type: "link"

        ref is set

      Inline Embed Annotation

        type: "embed"

        \uFFFC