Colormap/palette for lineplot's hue

Is your feature request related to a problem?

hue argument works for xr.plot.line() but there is no way to control in the function call the colormap.
Right now, one has to manually create an axis, modify its cycler and then pass the ax to the plot function.
Hence one cannot create the axis with the plot function there one cannot use the "size" argument of the plot function for example, and one has to manually pick the number of colorlevels needed :

fig,ax = plt.subplots(figsize=(8,5))

ds2plot = ...
ax.set_prop_cycle(cycler(color=plt.get_cmap('magma_r')(np.linspace(0.15, 1, len(ds2plot.time)))))

ds2plot.plot(y="altitude", hue = "time", ax =ax)

Describe the solution you'd like

ds2plot.plot(y="altitude", hue = "time", cmap="magma_r")
And why not colormap arguments (i.e min, max for the color coding like in my previous functioning example).

Describe alternatives you've considered

No response

Additional context

No response

Start at the xr.plot.line() entry point and inspect how hue is handled for line plots. Check the existing plot-call arguments and determine how cmap and optional color-range limits should fit while preserving size and ax behavior. Done means the requested call works with a colormap; add focused coverage for that behavior.