Kahlo’s colors also speak socially. Rooted in mexicanidad and engaged with leftist circles, she linked personal iconography to cultural identity; Self‑Portrait on the Borderline Between Mexico and the United States (1932) stages a contest between industrial smoke and indigenous flora. In this move from self to society, hope becomes shared authorship. Communities that create together build “collective efficacy”—a belief that joint action can change conditions (Bandura, 2000). Murals, mutual aid, and memorial altars all function like large canvases: they thicken solidarity with every added layer of paint. [...]