Scrollbars. Ever heard of them? They’re pretty cool. Click and drag on a scrollbar and you can move content around in a scrollable content pane. I love that shit. Every day I am scrolling on my computer, all day long. But the scrollbars are getting smaller and this is increasingly becoming a problem. I would show you screenshots but they’re so small that even screenshotting them is hard to do. And people keep making them even smaller, hiding them away, its like they don’t want you to scroll! “Ah”, they say, “that’s what the scroll wheel is for”. My friend, not everyone can use a scroll wheel or a swipe up touch screen. And me, a happy scroll-wheeler, even I would like to quickly jump around some time.
Yes, that is the worst aspect of modern UI design. Interactable elements that are distinguished from labels solely by color because accessibility is so 2010. Labels that have that same color for emphasis. Flat black windows with black borders in front of other flat black windows that will get focus if you accidentally click them.
Or what the article is about: Tiny, hidden scroll bars because Fitts’s law means nothing and every user has a touchscreen and 20/20 vision.