Field move texts, item-use results, Pokédex and summary fallbacks, trainer class and send-out lines, step events (repel, whiteout, fainting), VS Seeker and multichoice labels were plain literals or string.format calls, so a translation mod could not reach them.
Messages built at call time now go through Strings() with whole-sentence templates. Tables built at module load keep English sources marked with Strings.source() and are translated when read: FieldMoves.TEXT through an __index proxy, the Oak's lab rival fallback dialogs when the trainer is built, and ItemsData.POCKET_LABEL by its caller. Nature names and ability/move descriptions are translated where the summary asks for them. Values the engine stores or compares (box names, identifiers, quest-log keys) are left as they are.
thibautbus