I try to follow every region and I know that all of them have their own colour and logo which can be seen in their official youtube/twitch logos and their production. (not now though, switched because of the upcoming masters)
I think it is a very nice detail, and helps with establishing the identity of different regions.
There is a problem though. Americas and China's colour are both red, which while different shades, are still too similar.
In the official video for masters Madrid however(gorgeous btw with incredible attention shown to details), Americas' segment features a kinda violet colour, different from the official one, whereas every other region's segment is colour coded with their colour.
Makes me wonder if Americas is going to switch in the near future to that violet