1 | initial version |

Not sure how to customize the graphics produced by `graphs_list.show_graphs`

.

As you figured out, an alternative approach is to

- use
`graphics_array`

- specify some options to the
`plot`

method of each graph

Here are some options that will hopefully work for you.

```
G = graphs.cospectral_graphs(6)
opt = dict(vertex_size=200, vertex_labels=True, vertex_color='orange',
graph_border=True, layout='circular', xmin=-1.5, xmax=1.5)
n_st = {1: 'st', 2: 'nd', 3: 'rd'}
n_th = lambda n: n_st[n % 10] if n % 10 in (1, 2, 3) and (n % 100) // 10 - 1 else 'th'
nth = lambda n: f'{n}{n_th(n)}'
for n, gg in enumerate(G, start=1):
print(f"The {nth(n)} pair of cospectral graphs")
graphics_array([g.plot(**opt) for g in gg]).show()
```

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