Toon Ramp in 2018.1.0b11

[Zundrium]

There appear to be stripes in the new version. Using -0.05 instead of -0.5 for the X and Y axis for the light direction appear to fix this issue to some degree.

[Tesrym]

Got stripes as well.

[andytouch]

Try pulling the latest version (2018.3) and let me know if stripes are still present!