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 the planet of eco-fascism. I picked the 8-sided one to represent the worldwide need for change.
Edit: anarcho-communism is not a type of fascism. Y’all do realise that this is a leftist Lemmy instance, right?
Hmm, it’s also the color for stop. What color would you use for fascism, it’s mostly black which conflicts with anarchism, or perhaps brown. I think the wide solarpunk umbrella is more important than the communism, but YMMV.