Any way to overload or replace turbine.ui methods with my own?

[crazygonuts]

I can't read any of the fonts in game because they're too small, so I'm trying to write a small little mod to increase their size. The simplest way I can see to do that would be if I could replace SetFont in TextBox and just have it pick a larger font than the one passed in. It seemed like a longshot but I figured I might as well ask and see if there was a way I could replace that method or if those are completely inaccessible. Thanks for any replys.