There are workarounds to change the font style of point. Several of these are demonstrated here. Fonts which are Texts respond to all text changes: Points C & D
Source: [url=http://forum.geogebra.org/viewtopic.php?f=2&t=41161&sid=871867852702a0b3759a048e25aabfe9]Change points font[/url] Has a worksheet to Automate Caption Styling by rami.