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")