So I only read your comment and then played the game... and OMG "yes": it kicked ass! For like, 99% of it, I wanted all of the people I work with to be able to

So I only read your comment and then played the game... and OMG "yes": it kicked ass! For like, 99% of it, I wanted all of the people I work with to be able to at least answer this before building their own controls, as being good with spacing and kerning and shading are critical skills way too many people lack. But... it also had a handful of places that infuriated me--like made me viscerally angry at the state of society level angry, where if you answer the way the game wants you to I hope to not only not hire you but de-friend you :/--and of course none of them were "rounded corners". I then went back to the comments expecting--based on your comments--to waltz back here into a discussion about rounded corners to "lay down the law" about how horribly evil the designers are that agree with stuff like "make the skip button not look like a button so no one knows to click it as it is really really important that we get them to invite their friends for our product virality and KPIs, so you won't get promoted if that number goes down!" and... ...well, you were just wrong about the discussion: almost no one here (hell: I didn't even see a single example, but I was, admittedly, skimming to get the zeitgeist) is arguing about rounded corners :/. (edit: OK, in a more careful read I found one, but it was buried in a more substantial argument. I also don't think it was even correct as I remember the example being about inconsistent border radius, not "corners should be round".) Instead, the vast majority of the comments are about dark patterns and "form should follow function" complaints (as with the aspect ratio of the guitar: the goal of that control is to help a user decide whether to buy the guitar, and if it looks like ass then that matters less than satisfying its job; there are better ways of solving that problem, a la Pinterest's continuous grid, but they are going to cause other problems involving fairness... but like, if we aren't going to do that then, at best, we should be helping the user choose a different photo if we are going to insist on cropping it like that, not just cropping it "because our app looks so fugly with your silly image in it"). There were a few people I saw complaining about contrast, and that was in fact the only other place I lost some points (though, I will admit, in the opposite direction from the people here correctly arguing about accessibility... but, in my defense, I went that direction in my answers due to cynical beliefs about designers: I believed the Search box needed even less contrast as nothing else had been given much contrast ;P).