It’s probably not Photoshop, I see shit like this all the time on light posts in my city. There’s a really great one near me that breaks down why our police are awful, and asks for nobody to join the department. Pretty important, since the police have been desperately trying to hire for months.

Also saw one that was just Deny, Defend, Depose, very similar style to this one, but black text on red. I imagine it was a local anarchist’s work.