The straight white line on the spinner is the norm I think. Mostly for ground staff warning.
The large spiral is owned by someone and it costs the user. I think it was proven to be bird scaring at some distance.
Not true
Nobody owns the spiral and even the shape is debateable. The shape does affect where the ice and bird guts go behind the fan, but in the end it's a trade with other parameters like RPM, aircraft speed and exactly what point the bird-ice-hail-rain drop hits
The birds proved that any of the paint schemes don't bother them a bit (FAA ingested Bird data)