Open eq2ui_proxyactor.xml
Search for "NamePage"
Below that are 4 Text objects controlling name, prefix title, suffix title, and guild.
Immediately above the Text objects, add the following:
Code:
<TextStyle Algorithm="Simple" FontName="(Name Of Your Font Here)" Language="english" Name="MyCustomFont" PointSize="20" UseCachedFont="true"/>
Then change "/Fonts.FontZapf15" (18 for the first one) to "MyCustomFont".