Change arrow color

[gogreen]

I’m having some problems with the arrow.scm script. First, on the web I’ve found instructions to place arrow.scm in four different places. I’m not sure if some of these locations are Windows—I’m on a Mac. Nevertheless, I’ve placed arrow.scm in my User’s library here: /Application Support/GIMP/2.8/plug-ins. Is this the correct place in MacOS High Sierra 10.13.3?

Also, in the “Script-Fu: Arrow” window, after drawing the arrow, I get the spinning beachball and cannot close the Script-Fu: Arrow window. Is this an installation issue? What am I doing wrong?

Thanks.