PowerPoint Copilot Deep Dive

From a 9am brief to a 4pm board deck — Agent Mode (default since April 22, 2026), the Brand Kit + Template combo that fixes the 'why do my Copilot slides look generic' problem, exact-hex-and-template-name prompts, per-slide refinement that doesn't cascade, and the four-check verification habit that keeps your deck on-brand starting Tuesday morning.