Console
type text_style = [
| `bold
| `underline
| `crossed
| `black
| `red
| `green
| `yellow
| `blue
| `magenta
| `cyan
| `white
]
val colorize : text_style list -> string -> string
val start_color : text_style list -> string
val stop_color : unit -> string
type color_conf = [
| `Always
| `Never
| `Auto
val color_conf : color_conf Stdlib.ref