The new UI is something of a mess I'm afraid. Having the price of businesses constantly covered up by "BUY" is incredibly frustrating as is, to a lesser extent, having the achievement popup cover up my donut shops. It's not clear to me quickly which number represents income and which price for each business. It was very helpful in the old UI to be able to view upgrades/managers along side of my business to, say, compare the price of an upgrade with the price of buying 100 more of a give business. Its not clear (and it would be completely opaque if I were new) that clicking on the "1x" in top right should give me the option to buy in multiples and its even less clear (just stumbled onto it really) that clicking the picture in top left brings up stats. All in all I find this new UI much clunkier and less functional than the older one.
Hotkeys for skills would be very helpful. As would many more tooltips. I'd like to be able to see what my skills do in battle by mousing over, among other things.
Fun game. I really like the visualization of areas that are the wrong color; it really helps to plan out your next moves. I think the gameplay would be a bit more engaging if you got to choose which tool (add, subtract, invert) you were using for each move. The mechanics would have to change so that you have only a limited number of moves each round. Perhaps with rewards for completing the level in fewer. I feel this would reward creative and encourage multiple solutions to each level.
 "AdVenture Capitalist"){kind=icon}
 "The Gate"){kind=icon}
 "Invert Selection"){kind=icon}
 "Tetris"){kind=icon}
We do have ideas for extra and better control methods coming in the future :)