So a logic gate lamp could be renamed "strange pulsating rod" for example?
So texture packs can't make wires look different at all? Is that something to do with layers etc.?
1. Yes, you can rename items.
2. Texture packs can change the appears of Wires, definitely. The original question seemed phrased towards "in-game settings", but via Texture Packs, you could replace the Wire textures with entirely blank spritesheets if you wanted to. But COMPLETELY removing all wire visibility in this manner would definitely be a very awkward thing to do, you wouldn't be able to work on them at all. FYI, the sprites for Wire overlays are Wires.png, Wires2.png, Wires3.png and Wires4.png, in the main Images folder.