I've used redstone wires form IE for a while and I sometimes struggle when there's not actual feedback from the redstone network. You don't know if a cable is on or off, mainly because it doesn't change color.

It would do if it turned bright red when any color channel is inputting into it, and turned off when every channel is off. Two simple states.

Same with the connectors. Bright if it's outputting or inputting signal. Off if it receives a cable signal that it is not tuned for.

Also, the voltmeter should have some kind of reading for redstone wire. The colors that have signal and the ones that don't.

Machines like the redstone breaker should also have visuals IMO. Even a red dot turning on/off would be enough.

Any of these additions would make IE redstone that much appealing and easy to use, and any of them are usable on it's own.

I strongly disagree on the wires - way too many updates there. The connectors might be good, and I like the voltmeter and redstone breaker having a visual - I can never remember when I place the breaker if it's open or closed until I wire it up to test.