PDFViewer: Export downloads as .txt and built-in tabs cannot be styled

[mordeccai]

Hi Bob,

Following up on two issues I raised previously. I upgraded from 2.1.0 to 2.15.0, but both remain:

Built-in Export downloads the PDF as a .txt file.
I can't find a way to style the built-in document tabs (height, font, active state, etc.).

I want to keep using the built-in tabs rather than replace them.

Am I missing something, or are these currently unsupported?

Thanks!