iA Presenter

iA Presenter is a text-first presentation app (macOS / iOS). You write one Markdown file; the app auto-lays out responsive slides and keeps your speech as speaker notes. This skill covers two jobs:

1. Authoring decks – writing iA Presenter Markdown, packaging it as a .iapresenter bundle with a theme pre-selected, linting it, previewing it.
2. Custom themes – template.json + presets.json + CSS in the app's Themes folder.

Everything below was checked against the app's own bundled Help, layouts.json, the theme files shipped inside iA Presenter 2.0.2, the metadata parser in the app binary, and live rendering tests. Where community docs disagree with the app, the app wins.

Decision tree