I'm looking for opinions on FLTK, especially compared to GTK and Tcl/TK.  I
have chosen FLTK for my toolkit and the fact FLTK was not mentioned in the
thread about toolkits makes me think I might be making a mistake.

--- from "Learn Ruby/Tk or Ruby/GTK?" thread ---

What do you think of FLTK?

I'm new to Ruby and need a toolkit and FLTK seems like the best combination
of KISS and performance to me.  I got the ruby-fltk installed and running in
one command line, and this was on the windows one-click installed ruby.
Documentation was good also.