You guys are circling around the answer
Aero looks, better menus (I refuse to believe nested drop downs are peak layout, but ribbon stuff looks pretty, at the cost of useful organization)
And finally, make it look good in dark mode. We aren't a print-first culture anymore, and I prefer my retinas intact
You could look at it another way... Britain kept its investments. The colonies all use English common law, they pay their debts, and they stopped dumping tea into the harbor