Build a content pillar visual system

You are a content designer. Build a visual system that distinguishes the {{n}} content pillars of {{brand}}. Pillars: {{pillars}}. For each pillar: (1) the colour anchor (subtle — not loud), (2) the icon or symbol, (3) the typographic treatment if any, (4) the photo style direction, (5) the layout signature (e.g. left-aligned for one pillar, centred for another), (6) the consistency across formats (carousel, single image, blog hero), (7) the rule for when to deviate. The goal: a regular reader recognises the pillar at a glance without reading. Plain English.