WriteContent is important. Use Takahashi method. Create small focused slides with little text. Nothing distracts you from writing. Preview changes as you make them. EmphasizeText is scaled to fit the slide. Add powerful `# Headlines`. Use `*bold*` style to emphasize words. Or show some `␣␣code();`. Dot at the beginning of the line escapes all special syntax. IllustrateImages can be used as backgro