Is it possible to reset all fonts to their default settings?

Hi David,

Are you using the Dynamic Typography system?
https://docs.generatepress.com/article/dynamic-typography-overview/

If so you can just remove everything by clicking the trash can icon.

Let me know if this helps :)

I am sorry I do not understand. I don't want delete a font. I want to reset all font sizes and capitalization to the default at installation.

I want to reset all font sizes and capitalization to the default at installation.

There isn't an option to do that, unfortunately - you would need to set it manually.