from spb import *
graphics(
    zgrid(),
    zgrid(xi=0.05, wn=False, rendering_kw={"color": "r", "linestyle": "-"}),
    zgrid(xi=False, wn=0.25, rendering_kw={"color": "b", "linestyle": "-"}),
    grid=False, aspect="equal", xlim=(-1.2, 1.2), ylim=(-1.2, 1.2))