 The band used and advocated a DIY ethic approach to its albums, sound collages, leaflets, and films.Crass spray-painted stencilled graffiti messages in the London Underground system and on advertising billboards, coordinated squats and organised political action.The band expressed its ideals by dressing in black, military-surplus-style clothing and using a stage backdrop amalgamating icons of perceived authority such as the Christian cross, the swastika, the Union Jack and the ouroboros.