Atan2 Spirals - Whittaker Courtney
Variation based heavily on atan2 functions. With linears, it can create tiled patterns with spirals or mobius dragon type effects.
Goes well with the custom variations csc_squared or corners which were designed to work with it. Lots of variables to play with and adjust the pattern.
Code (can paste this into custom_wf variation or custom_wf_full)
Or download the code and add it to your JWildfire Custom Variation Loader