One of the things I love about playing around with FastLED is that by tweaking the parameters of a given pattern, you can get some quite different effects. Doing this by editing and recompiling can be very slow, esp with some controllers.
I find it’s much better to use a variable resistor or DMX to allow you to tweak at runtime
Example of how the Cylon example converted to be a sCAN (E1.31) lighting fixture