[sp332]

Not showing the interact-able parts of the UI. Sometimes buttons will have a large colored area, but only the text at the center is clickable. More often the opposite, a chunk of text with no indication of where the clickable/tappable area begins and ends. Even worse is when there are multiple options in a row with no way to see the boundaries between, or if there is any dead space. Fitt's Law has been a thing since before these designers were born!

The worst example I encounter on a daily basis is Twitter. Each tweet has at least 8 sections that do different things when tapped. I never know quite where to long-press with my thumb over the tiny timestamp to open it in a new tab, or where the boundary is between the single line of text and the username.