Reroute alpha overide

Hi, I’ve submitted a patch which allows users to set the alpha value of node editor wires in the theme editor, but I’ve realised I also need to be able to hide the reroute nodes.

I’ve added the reroute node to the theme editor, modifying userdef_default_theme.c, ui_resources.h, resources.c, DNA_userdef_type.h, and rna_userdef.c. I can’t figure out how to get the setting to take effect in the UI though, reroutes doesn’t seem to be drawn in node_draw.c, and in drawnode.c I can’t find where the colour is being set. Any clues?

Here’s my diff if anyone wants to take a gander?