@adam Can it have tipping prices set in dollars, or yen only? English language is showing fine but tipping amounts are denominated in yen only from what I can tell - Is that just how you configured your sample buttons or is it a current limitation?
Right now, it can be denominated in dollar or yen. btc denomination will be added sometime this month. If the sample is shown in yen, it's a configuration error and we can fix it easily.