You can read more about the fonts in this article: System Fonts
Font spoofing settings in Kameleo
You can turn on or off the fonts spoofing. You can also add fonts in the configuration, but we do not recommend that.
You can find the fonts settings in the Device panel’s More menu.
If you turn it off, then the websites will see your computer’s fonts. This can be problematic if you are using more accounts from that computer.
If you turn it on, then Kameleo will use the fonts from the Base profile.(What are the Base profiles?)