I honestly don't like this new design.
I'm sharing my opinion here in the Discussion, and I have to say (As many of you have already said), I honestly don't like this new design. The previous one was just more "Simple" and looked nice, while this one is just... "Weird". I don't even know why would Duolingo change the Design, honestly, no one complained or wanted an Update on that, and I think they should listen to the Community's Opinion on what to fix.
It's questionable if Duolingo is going to listen to the Community's Opinion or not, I rather have the Design changed, because I don't care learning a Language in a "Fancy" and "Complexity" Design, Because that's not what Duolingo is made for. Having a more Simple Design is better, and I'm absolutely fine with it, as I didn't came here to admire Duolingo's Design, I came here to learn a language, and I don't know what's Duolingo's Logic in this one..
Same with me--most of the time. sometimes, i honestly want to rip my screen right out of the device i'm using.
The only part that is difficult for me is the Spanish letters in gray under the text box. I'm older and my eyes aren't great anymore (thus keeping my mind in tact!) having to see the gray Spanish letters though is now very difficult. Hoping they'll consider making those a bit more readable. Other than that, it's all just change and, well, change happens! :-)