Remove defaultStyle from PDFDomTree

Question

I like to convert pdf document into html content. I am using PDF2Dom lib version 2.0.3

<dependency>
        <groupId>org.apache.pdfbox</groupId>
        <artifactId>pdfbox</artifactId>
        <version>2.0.18</version>
 </dependency>

Conversion works, so I wont paste my code... but I like to remove that blue border line from the html document.

If I open PDFDomTree source, I see defaultStyle is protected:

https://github.com/radkovo/Pdf2Dom/blob/main/src/main/java/org/fit/pdfdom/PDFDomTree.java

Is there anyway to overwrite it, or any suggestion for another tool.