Preview Tools
When you run a deck in preview mode — the live, hot-reloading view you use while writing slides — Tachyonn shows a small tools menu in the top-right corner. Click the ☰ menu button to open it.
These tools exist only in preview mode. They're for authoring, so they never appear during an actual presentation.
Reload from scratch
Choose Recarregar do zero to force a full re-parse of the deck. Tachyonn re-reads your .tac file and every file it depends on — the cascade of tac.config files and any external .tt theme you reference.
Why it's needed: the live hot-reload watches only the .tac file itself. When you edit a separate config or theme file, those changes aren't picked up automatically — this button is how you pull them in. The deck refreshes in place, with no browser reload.
Tips
Editing the .tac itself already hot-reloads on save. Reach for this button after changing a theme .tt or a tac.config.
Style inspector
Choose Estilos do slide to open the style inspector for the slide you're currently viewing.
Tachyonn resolves styles in layers — the built-in default theme, then your project's tac.config, then the deck frontmatter, then the slide's own frontmatter — with each layer able to override the one before it (see Themes → cascade). The inspector makes that cascade visible.
For every effective style variable on the slide it shows three things:
- Variable — the CSS custom property or setting (e.g.
--tac-accent,background,footer.right). - Value — what it resolves to, with a color swatch when the value is a color.
- Origin — which layer won, as a colored badge:
| Badge | Means the value came from… |
|---|---|
| Tema padrão | the built-in default.tt |
| Config global | a tac.config in your project |
| Frontmatter do deck | the === block at the top of your .tac |
| Este slide | the === block on this specific slide |
So if a heading color isn't what you expected, the inspector tells you exactly which file set it — no guessing. The footer of the modal also lists the theme file and any tac.config files in play.
Export PDF
Choose Exportar PDF to turn the current deck into a PDF without leaving the preview. Tachyonn opens the print view and your browser's print dialog; pick Save as PDF and you're done. Just like the command-line export, slides with animations expand into one page per reveal step.
Two ways to export
The preview button is the quick path while you're drafting. For scripts, CI, or reproducible builds, prefer the tachyonn export command.