You can scale the whole UI by typing /scaleui 125 (or the number of your desire, with 100 being normal). There is also a Big Fonts extension you can use, https://www.fantasygrounds.com/forum...l=1#post227962
If you want to alter the extension to your needs, more info here:
- https://www.fantasygrounds.com/forum...lay-Font-Sizes
- https://www.fantasygrounds.com/forum...-Tab-font-size
- https://www.fantasygrounds.com/forum...-size-question