This means you will be adding the debitButton and creditButton pair because they don't exist yet in master. Unless you're handy with graphic design, you're welcome to skip over shaping the button pair as a AA battery.
Also, I added more cases than I tested today. Completing this test run may require another week, or two, at most. So long as you continue requesting in advance to avoid duplicate or obsolete changes, you're welcome to work on cases as I test.