In our timeline, the United States of Greater Austria were a proposal made by Aurel Popovici in the year 1906, during the reign of Emperor Franz Joseph. Obviously, it did not see the light of day.
In this timeline, the United States of Greater Austria were a proposal made by Aurel Popovic in the year 1909, shortly after Emperor Francis II assumed the throne. While its gradual implementation forced the country on the brink of civil war for two whole decades, the United States finally reachieved political stability just as the first wave of war communism hit Europe.
The darker spots are autonomous regions, where minorities (usually German ones) have special rights in regards to the entity which governs them.