Chips and a locale.

Two rows. Conversions — a multi-select chip group, active chips in italic Ink with the ochre underbar, inactive chips in Ash struck through. Locale — italic Ochre with em-dash bookends, the value in Ink, a caret to signal the picker. Locale seeds the chip defaults on first launch (CA shown) and drives locale-specific math like Australian tbsp = 20 mL. Saved per-user at app/(app)/account.tsx once §12 step 9 ships; this screen is the visual target.