* Added ability to choose any writable folder for ROM location.
* Added ability to simulate actual TI-89 speed.
* The ROM's auto-off feature was effectively disabled.
* The contrast will now be automatically adjusted on new and reset ROMs.
* Increased the overall stability of the application.
* Fixed bug where the keypad would be white on Android Oreo (and possibly earlier versions).
* Fixed bug where the emulated screen would be corrupt on 64-bit versions of Android.