Copied my Ludum Dare game (Exterminator) as a template.
See a 7x5 grid of shuffled 5 shapes and 5 colors.
Drag to match 3 or more gems of same color.
To prepare to move cells, refactor to a Cell class.
Collapse cells down.
Collapse empty columns left.
Score 10 levels.  If clear board, level up.
12 levels.  Button to restart level.