rem: std::string progress_bar(float progress, int width)
add: std::string progress_bar(float progress, int width, char const* code = "33")
context: std::string progress_bar(float progress, int width){	std::vector<char> bar;	bar.reserve(width);	int progress_chars = static_cast<int>(progress * width + .5f);	std::fill_n(std::back_inserter(bar), progress_chars, '#');	std::fill_n(std::back_inserter(bar), width - progress_chars, '-');	return std::string(bar.begin(), bar.end());}