Ice White vs Alpine White II?

[Lynch96]

Just wondering if anyone knows the difference between ice white and Alpine White II? Just naming? Or different color code/appearance?

I see the term is used in the South African market

"This immaculate example of the 333i with just 90,000km on the clock, in Aero silver happens to be the nicest of the four colours in which they were offered, these included Diamond black, Henna red and Ice white."

Here are some photos and links to 2 blogs that reference it.

http://www.sabeemer.co.za/the-collection-series-2-episode1

http://www.bmwblog.com/2015/10/19/three-of-the-best-e30-m3-versus-e30-333i-and-e30-325is/

**edit** just realised i meant to post this in the apperance section :-?