Which OS threw this dialog?
Which one threw this?
Eight dialog boxes with the badges off. Mac or Windows — and every round tells you the difference you were supposed to spot, which is usually the button you have clicked ten thousand times without looking at.
Every box is drawn from each platform's published conventions — button order, default marking, title bars, the words each side uses — rather than traced from a screenshot. No logos appear on any of them, because a round you win by spotting a logo teaches you nothing.
Every box is a facsimile: the layout, button order and wording follow each platform's own conventions, and nothing is traced from a screenshot or carries anyone's artwork. Where the two have converged — Windows 11's rounded corners, for one — the round says so rather than scoring you on a difference that has gone.