mlegend(legend_display_type = "disjoint", legend_text_composition = "user_text_only", legend_title = "on", legend_user_lines = ["extremely cold", "very cold",...,"temperate", "hot"], legend_text_font_size = "0.5", legend_text_colour = "black", legend_entry_text_width = 80.00, legend = "on", legend_title_text = "Temperature at 850 hPa")