val fg_default : tval fg_black : tval fg_red : tval fg_green : tval fg_yellow : tval fg_blue : tval fg_magenta : tval fg_cyan : tval fg_white : tval fg_bright_black : tval fg_bright_red : tval fg_bright_green : tval fg_bright_yellow : tval fg_bright_blue : tval fg_bright_magenta : tval fg_bright_cyan : tval fg_bright_white : tval bg_default : tval bg_black : tval bg_red : tval bg_green : tval bg_yellow : tval bg_blue : tval bg_magenta : tval bg_cyan : tval bg_white : tval bg_bright_black : tval bg_bright_red : tval bg_bright_green : tval bg_bright_yellow : tval bg_bright_blue : tval bg_bright_magenta : tval bg_bright_cyan : tval bg_bright_white : tval bold : tval dim : tval underlined : tval escape_sequence : t list -> stringAnsi escape sequence that set the terminal style to exactly these styles