So basically what happened here is that in the revolutionary war, the americans and allies don't take over the northern part of New England, so it becomes split into three buffer states.
The purple one is the Iroquois / Haudenosaunee Confederacy, formed from a small part of the Indian Territory which wad given to america, and originally a confederation of 5 tribes. The reason there's a sixth province is because of migrants from the 'Manifest Destiny' thing.
Green is just Vermont.
Chartreuse is New Wabanaki, named after the Wabanaki Confederacy but mostly home to white people. The northern part of it was severed by the british to make transport easier.
This basically prevents 1812 from happening and idk what would happen from that, the map takes place in 2022 anyway.