v1.61
updated target API
v1.6
fixed possible crash
minor visual improvements
improved piece rate consistency
simplified scale setting
v1.51
added themes: doodle boxes, colored doodle boxes
removed single-level NES themes
v1.48
added themes: LEGO rainbow, toy building blocks
added fill-and-zap pile mode
v1.45
much gooder brick-laying
v1.43
added theme: neon
other themes tweaks and fiddles
v1.4
added themes: pentominoes, ivory dominoes, LEGO bricks