type color = Melange_wrapper.Misc.Color.color = | Black| Red| Green| Yellow| Blue| Magenta| Cyan| White
;type style = | FG(color)| BG(color)| Bold| Reset| Dim
;let ansi_of_style_l: list(style) => string;let get_styles: unit => styles;let set_styles: styles => unit;type setting = Melange_wrapper.Misc.Color.setting = | Auto| Always| Never
;let setup: option(setting) => unit;