Hatched shading

import earthkit.data
import earthkit.maps

data = earthkit.data.from_source("url", "https://get.ecmwf.int/repository/test-data/metview/gallery/efi.grib")
data.ls()

	centre	shortName	typeOfLevel	level	dataDate	dataTime	stepRange	dataType	number	gridType
0	ecmf	10fgi	surface	0	20200917	1200	12-36	efi	0	regular_ll
1	ecmf	2ti	surface	0	20200917	1200	12-36	efi	0	regular_ll
2	ecmf	tpi	surface	0	20200917	1200	12-36	efi	0	regular_ll

fgi = data.sel(shortName="10fgi")
tpi = data.sel(shortName="tpi")

from earthkit.maps.styles import Hatched

LEVELS = [0.6, 0.8, 1.0]
HATCHES = ["."*5, "o"*5]

fgi_style = Hatched(
    colors="magenta",
    levels=LEVELS,
    hatches=HATCHES,
    legend_style="disjoint",
)

tpi_style = Hatched(
    colors="green",
    levels=LEVELS,
    hatches=HATCHES,
    legend_style="disjoint",
)

chart = earthkit.maps.Chart(domain=(-18, 40, 30, 72))

chart.plot(fgi, style=fgi_style)
chart.plot(tpi, style=tpi_style)

chart.coastlines()
chart.borders()
chart.land()
chart.gridlines()

chart.title("EFI (Extreme Forecast Index) at {time:%H:%M} on {time:%Y-%m-%d} (T+{lead_time})")

chart.legend(label="{variable_name}", location=["top left", "top right"], ncols=2)

chart.show()