Original Author: Atte Andr�© Jensen (atte.dk), 2008
Updated by Steven Yi, 2017-09-24

Spectral pad, with sounds similar to Roland D-50 and other
late 80's, early 90's hardware synths.

Changelog:
1.2
* fixed missing/additional commas, adjusted code to work with Automatable widgets

1.1
* Added Brightness control

1.0
* Initial release