mgrib(grib_field_position = 1, grib_input_file_name = "2mt.grib") mcont(contour_level_selection_type = "interval", contour_shade_colour_method = "list", contour_shade_method = "area_fill", contour_shade = "on", contour_shade_max_level = 52.00, contour_hilo = "off", contour = "off", contour_line_thickness = 3, contour_label = "off", contour_shade_colour_list = ["rgb(0.2,0,0.4)", "rgb(0.35,0,0.5)",...,"red", "magenta"], contour_shade_min_level = -64.00, contour_interval = 4.00, legend = "on")