El Greco's late-16c Toledo period invents a mystical Mannerism so extreme it had to wait three centuries for Picasso and the Expressionists to make sense of it. Figures stretch eight heads tall against storm-bruised cobalt skies, draped in lemon-flame yellow and electric violet, lit from inside the canvas itself.

This system translates that visionary chromatic discipline into UI: bruised-cool darks anchor the page, flame-saturated warm highlights carry the action, and Byzantine antique-gold rings echo nimbus halos. Compositions strain vertical, never centered or calm.