Claim: The Doxygen has the possibility of extended customization with XSLT.
Evidence: XSLT (Extensible Stylesheet Language Transformations) is a language for transforming XML documents into other XML documents, or other formats such as HTML for web pages, plain text or XSL Formatting Objects, which may subsequently be converted to other formats, such as PDF, PostScript and PNG. Doxygen (/ˈdɒksidʒən/ DOK-see-jən) is a documentation generator, a tool for writing software reference documentation. Doxygen can cross reference documentation and code, so that the reader of a document can easily refer to the actual code. Doxygen runs on most Unix-like systems, macOS, and Windows.