mgrib(grib_field_position = 1, grib_input_file_name = "2mt.grib") mcont(contour_shade_colour_method = "list", contour_shade_method = "area_fill", contour_shade_max_level = 56.00, contour_reference_level = 0.00, contour_highlight_style = "dash", contour_label = "off", contour_min_level = -48.00, contour_max_level = 56.00, contour_hilo = "off", legend = "on", contour_interval = 2.00, contour_shade_colour_list = ["rgb(0,0,0.5)", "rgb(0,0,0.5)",...,"magenta", "magenta"], contour_level_selection_type = "interval", contour_shade = "on", contour_line_colour = "grey", contour_highlight_thickness = 3, contour_highlight_frequency = 100, contour_highlight_colour = "rgb(0.4,0.1,1)", contour_shade_min_level = -48.00)