New features
- Added 3 boxes contract
- Added box box contract
- Added diagonal X contract
- Added dual slit contract
- Added hollow box contract
- Added I beam contract
- Added logo contract
- Added not logo contract
- Added round smiley contract
- Added square smiley contract
- Added spiral contract
Bug fixes
- Fixed lathe save
- Fixed program UI display bug
- Fixed program UI selection bug
- Fixed lathe output bug