> Is something a button? Should I click it or double-click it? How about long-press on it? How can I know when there's no visual clues? Since Windows 7 (or 8,

> Is something a button? Should I click it or double-click it? How about long-press on it? How can I know when there's no visual clues? Since Windows 7 (or 8, I can't remember) and the "Metro" style apps, in the Control Panel in particular one of the controls (IIRC it was something like the 'show/hide icons in task tray'), that was previously a button, became a "hyperlink", essentially clickable text. Clickable text that was the same colour as unclickable text. What. The. **