Snowflakes should be hexagons

These are not snowflakes:

https://snowflake.torproject.org/assets/status-on.svg

https://snowflake.torproject.org/assets/status-on.svg

Though correct here (hexagonal, not octagonal):

https://snowflake.torproject.org/snowflake-schematic.png

I know—super important ;) But hey, it also looks better as a hexagon (IMO).