Cards have 4 options
Again, Hard, Good, Easy
Basic
One directional
Overlapping Cloze
Not free
Image Occlusion
diagram labelling (an add-on)
Multiplier
Computed from Last Score (Hard = 1.2, Good = Ease, Easy = Ease * Set Bonus) + Ease
Days Late
Number of days your card was waiting after its set study time (edge case if the user doesnt return to study on set date)