mgrib(grib_field_position = 1,
grib_input_file_name = "2m_temperature.grib")
mcont(contour_level_selection_type = "level_list",
contour_shade_colour_method = "list",
contour_shade_method = "area_fill",
contour_shade = "on",
contour_level_list = [-70.00, 0.00],
contour_shade_colour_direction = "anti_clockwise",
contour = "off",
contour_label = "off",
legend = "on",
contour_shade_colour_list = ["rgba(0.498,0.8,0.8,0.6)"])