Read explanations and simple examples here.
The back of the cards will all have the same image if one is specified, but the optional prompt text file can serve to give a prompt for each one.
Print card back
file names as prompts
back font size
The answer file specifies answers to match the prompts on the back, so they must be given in the same order.
Each card front can have it's own image and the order of these will be alphabetical.
Print card front
front font size
Front = Answer
Back = Prompt