How to increase the font size of CircleMarker's legend?

[zxdawn]

The legend font size is really small when the list for circlemarker is long:

I have tried to modify the add_circle_markers_from_xy:

            for p in popup:
                html = html + "<b>" + p + "</b>" + ": " + str(row[p]) + "<br>"
            html = "<h2> " + html + " </h2>"
            popup_html = widgets.HTML(html)

It seems <h2> doesn't work at all.

[giswqs]

Fixed in #628. Update the package using leafmap.update_package() and restart the kernel.