Comment 11 for bug 1942434

> When no font was defined (default) many fonts are in PDF export

This is because the default font doesn't contain Czech characters, so ReText's text engine has to fallback to other fonts.

> I see new issue. When I select preview font, I can set "font style", like regular, italic, bold, normal, oblique, etc. This information is not saved to ReText.conf file; only font name and size is stored.

This will be fixed in the next release: https://github.com/retext-project/retext/commit/1f1b55725960a8b7. Unfortunately, it also means that old settings will not work after upgrading, and you will have to select font from the dialog again to get the updated settings.

> It means that once Retext is started in the future, it can show different style in preview mode (and in PDF export).

No, it shouldn't do that. It should always select the regular variant (non-bold, non-italic, etc.).