Tacey's windows on the order page use the language you picked in Tacey

The Re-validate address, Merge, Approve refund and customer changes windows on Shopify's order page now show every word and every date in the language you chose in Tacey, even when your Shopify admin is in another language. Before, a store set to French inside an English admin showed a French result beside English titles and buttons. Shopify draws the More actions menu entries itself, so they still follow your Shopify admin language.