Ooooohhh crystal saber! Congrats!
Here's a link to the
Spark Color 2 page over on the NEC website. There you can find the manual, a set of default files, and the Spark Color Config Editor PC program. I strongly advise giving the manual a read before doing anything with your SD card (or even the in-hilt color/motion editor).
Three main rules to follow when making any edits on the PC:
- Backup the SD card to your PC first (if it's not already)
- Edit from a copy of the backup
- Format the SD card before copying any files over
While you can't entirely disable the "color change on twist" feature, you can have it require the Aux button to be pressed at the same time as the motion via a checkbox in the Config Editor. It's a per-font setting, rather than a master setting, so you'll need to do it for all of the fonts on the saber.