The green represents the need for an emphasis on ecological change, whilst the black is in reference to the black anarchist flag (here’s some historical context.
The red 8-sided asterisk represents the urgency for communities to cooperate in ridding eco-fascism. I picked the 8-sided one to represent the worldwide need for change.
Yea, that part doesn’t make sense to me. Anarchism seems counter to the authoritarian nature of communism.
That might be because you’re perhaps thinking of anarchists as being absolute anarchists and communism being only the Marxist/Leninist version. Anarcho-communism can also include Democratic Confederalism, which hinges upon the idea of a bunch of tiny governing bodies working together as organic, voluntary coalitions (think native American tribes working together but remaining individually distinct).
The “anarcho” part comes from a fundamental rejection of gigantic governing bodies, and the “communism” part recognizes community as the fundamental and vital block in the overall structure.