Presumably due to the scaling used by the drawing methods

If a kanji is partially learned, it should be given before any new kanji.  However, currently it's giving new kanji first.

Near the end they seem to be taking to long

Finished a review, missing several kanji. In the next review, first kanji was the same as the last kanji from the previous one!

Should go 2-6,1,7

Example:   - 下 - した   - 本 - ほん   - 中 - なか

Right now it takes 5+ minutes to generate the database, making trivial changes extremely difficult to test.  Improve the speed so future changes can be made.

Last few chapters have no name, check 14 ex is wrong type

If you get a mastered kanji correct it's supposed to be hidden for the rest of the lesson, but it's not...