Why emacs Tuareg mode shows different color for functions in Ocaml? -

Why emacs Tuareg mode shows different color for functions in Ocaml? -

just want know why tuareg mode shows different colour functions?

for example, shown below, function create_percolation , index_of show blue color , is_open in brownish color.

why??

it bug of tuareg. if first arg of function record, tuareg fails recognize function definition. tuareg written in emacs lisp , knows nil ocaml syntax tree ocaml compiler does. should not expect perfect it. if not it, how submit bug study tuareg mode development website?

emacs ocaml tuareg