Filter on node border color

[cecdf2]

Hello,

Thank you for this very useful package.
I noticed that when filtering nodes on node border value, the filter seems to be on node color, and not node border color. Is that expected behavior ?

Example: when fitering nodes to keep those with the purple node border color, two nodes should be displayed (labelled Diab Youssef and Colombert Morgane). Only the one who has the purple color as node color is actually displayed.

[Yomguithereal]

Probably a copy-paste gone bad in the code indeed :) I'll wait on #248