shape, size and split

[pulpo]

Hi,

How can I change the size of the shape? I successfully changed the
type of the shape with scale_shape_manual(), but scale_size_manual()
seems to have no effect. Also, if I set do_lines=F, it seems that the
legend is not generated, is there anyway to get the legend back with
only the shape? or am I missing something in the settings...

Thank you very much for your help!