Is voting still open? In short, my preference is #1.
‘Adding popular style notation’, would be an improvement in my mind, but it’s fine as is.
But the second part, ‘keep colors the same’ I strongly favor. If applied consistently, color can be a useful mnemonic tool. Not sure if other users have used HookTheory in a similar manner, but at this point, even if you changed the colors, I’d still be using the original ones. Thanks.