probably a bug in matplotlib 3.5.2

[alexlib]

Running your example of vect_plot (0.4.2, matplotlib 3.5.2) I get:

"name": "ValueError",
	"message": "Passing parameters norm and vmin/vmax simultaneously is not supported. 
Please pass vmin/vmax directly to the norm when creating it.",

can be solved by replacing:

pargs = {
    'norm' : mpl.colors.LogNorm(),
    'vmax': 1000,
    'vmin': .1,
    'cmap': 'pink',
}

with:

pargs = {
    'norm' : colors.Normalize(vmin = 0, vmax = 1000),
    'cmap': 'bwr',
}