there is a C interface to fltk by D. J. Peters for freebasic language. But since dynamic library is supplied, we can use FLTK-C in other language. As a result, I translate the rich freebasic examples into nim. You can check it at [https://github.com/retsyo/FLTK_nim](https://github.com/retsyo/FLTK_nim)
However, I use windows, maybe you have to adjust the code to make it runs on Linux. BTW, is it possible to change the theme in FLTK? The default looking is too nostalgic.
