On the font issue. I'm on a Mac, not a PC but also wanted more customization of the IDE.
My solution was to check the "External Editor" preference and then use a totally different editor. So now I write the code in Xcode, then compile and upload it in the Arduino IDE. I just made a new Xcode project called Arduino and added all of my .pde source files to it. Of course it will not compile, but who cares? I had to tell Xcode that .pde was a C file.
So I write the code in my favorite editor, save, switch to Arduino IDE, compile, and upload if it succeeds.
So see if you can pull off the same thing with your favorite C/C++ IDE on the PC. It made a big difference for me.