I can suggest something like the BLM raised fist, it is used mostly around BLM but I think it’s a good symbol for activism as a whole?
Something like this: https://stock.adobe.com/nz/images/black-lives-matter-fist-hand-graphic-icon-symbol-black-power-illustration-perfect-for-a-protest-sign-card-or-shirt-design/366822987
the image on the adobe link isn’t displaying for me for some reason, but i think multiple raised fists might be cool to use, like this one:
https://www.flaticon.com/free-icon/black-lives-matter_4797126
or maybe something with signs: https://www.flaticon.com/free-icon/social-justice_10523661
https://www.flaticon.com/free-icon/green_2641213
basically i’m voting for colourful icons as an aesthetic choice, & icons with multiple people to keep a focus on collectivism :)
Makes sense, I do prefer clean black/white designs, but this is a personal preference and I see how multicolor icon with multiple people/fists is better representation of the community.
i think that website allows just the outlines to be used as well, if that’s what folks prefer!