OpenRadar itself does not allow to change font sizes. I have thought about it and dropped it, because larger fonts would change the available space and would impact the usability a lot. It might be, that your Java respects some of your operating system settings. You still can reduce the screen resolution to increase the font sizes, but this has a similar effect and is likely not, what you want. Targeted platform is an external (non-laptop) monitor with 1920x1080. What operating system, which Java and which screen resolution / screen size do you use?
I used 1920x1080 on an 17inch Laptop. Now I have an old but bigger TV screen here (do not know the size) and this is about fine. I think my eyes are just getting old
However, one other question: To whom do I send Airport files I made? Have some for ETNL.