I appreciate that DearPyGui comes with a built-in font. However this particular one is somewhat "old school".

I also realize that DearPyGui allows a program to add fonts at run-time from the local machine; however, for a fully cross-platform application, there is no guarantee that any specific font will be available on a given machine/OS.

Would it perhaps be possible to add another pre-installed font that would serve to help create a more modern looking interface (titles, button labels, widget text, and so on)?

If so, can I suggest one of the Helvetica-like fonts that are available from Google without any license restriction - for example "Inter" (https://fonts.google.com/specimen/Inter). This is specifically designed for interface use because it's scales really well, even down to small pixel sizes.