Front and back

Two views of one garment, made by separate generations — and kept in agreement by measurement rather than hope.

A studio flat is two generations; a technical flat is two more. Separate generations drift, so the studio corrects what it can measure: framing is normalised from the pixels so every view fills the same fraction of its frame, and the other view is sent as a reference so colour, fabric and trim match.

Apply changes works out from your instruction whether a change should reach both sides. A print reaches both; “add a chest logo” does not. If one view changes and the other does not, you are told — and that is sometimes correct. Compare them; the studio cannot know which.