mgrib(grib_field_position = 1,
grib_input_file_name = "10m wind gust extreme forecast index.grib")
mcont(contour_level_selection_type = "level_list",
contour_shade_colour_method = "list",
contour_label_colour = "black",
contour_shade = "on",
contour_level_list = [0.30, 0.40,...,0.90, 1.50],
contour_line_colour = "black",
contour_label_frequency = 1.00,
contour_shade_min_level = 0.30,
contour_hilo = "off",
contour_highlight = "off",
contour_label = "on",
contour_shade_method = "area_fill",
legend = "on",
contour_shade_colour_list = ["none", "none",...,"RGB(1, 0.25, 0, 1)", "RGB(1, 0, 0, 1)"])