After Mono Framework 2.10.3, the way was changed how we modify the default font of Mono application like MonoDevelop. In this post, I write the way to modify from "Lucida Grande" to "Hiragino Maru Gothic Pro".
- Detect gtkrc file. If you are a MacOS X user, this file is in /Library/Frameworks/Mono.framework/Versions/Current/etc/gtk-2.0/gtkrc
- patch below onto /Library/Frameworks/Mono.framework/Versions/Current/etc/gtk-2.0/gtkrc
> font_name = "Hiragino Maru Gothic Pro 14"
< gtk-font-name = "Lucida Grande 12"
> gtk-font-name = "Hiragino Maru Gothic Pro 12"