mgrib(grib_field_position = 1, grib_input_file_name = "2m_temperature.grib") mcont(contour_level_selection_type = "interval", contour_shade_colour_method = "list", contour_shade_method = "area_fill", contour_shade = "on", contour_shade_max_level = 42.00, contour_highlight_thickness = 5, contour = "off", contour_line_thickness = 3, contour_label = "off", contour_highlight_frequency = 100, contour_hilo = "off", contour_shade_colour_list = ["rgb(0.3,0.3,0.3)", "rgb(0.4,0.4,0.4)",...,"rgb(1,0.6,0.6)", "rgb(1,0.75,0.75)"], contour_shade_min_level = -32.00, contour_interval = 2.00, legend = "on")