I still had the urge to work on FBD, so here's another update. This'll probably be the last one for a while, as I have a hankering to work on a new game again (see you next January, if the pattern holds up).

Features:
* Added in-game mouse support. Default controls are tap left mouse to hard drop, hold left mouse to soft drop, right click to hold, and use the scroll wheel to rotate. These inputs are rebindable in the options menu. In-game mouse support can be disabled in the menu if it's interfering with play.
* Added a legacy game mode for the 2006 handheld game.
* Maximum preview length increased to 6.
* New retro block image type.

Bug Fixes/Improvements:
* Fixed the drop timer not resetting when a block was held.
* Added vibrations on selecting menu items.
* Fixed a case when the controller would vibrate when using the keyboard after the controller.
* Made more controller inputs proceed to the game results screen.