hover over shader wire displays tooltip showing where it's come from and where it's going, plus additional ideas.

hover over shader wire displays tooltip showing which node/socket it's come from and which node/socket it's going to. reroute's should be ignored.

Additionally when the tooltip is displayed you should be able to press a hotkey to frame the either the from node or the to node. Would save a lot of panning around.

A nice extra would be if the wire hovered over would become highlighted (after a delay so i't not annoying), and also the nodes at either end of the hovered wire.