# Preview Text Size: Hermes Agent plugin

> Larger or smaller text in the Hermes Desktop file preview pane: scales the rendered Markdown from 90% to 175%, independent of Chat Text Size and UI Scale, through a row in Settings → Appearance, three command-palette…

Canonical: https://hermeswatcher.com/plugins/preview-text-size  
Tier: Community  
Official page (Nous Research): https://hermes-agent.nousresearch.com/docs/plugins/preview-text-size  
Last updated in catalog: 2026-10-23

Larger or smaller text in the Hermes Desktop file preview pane: scales the rendered Markdown from 90% to 175%, independent of Chat Text Size and UI Scale, through a row in Settings → Appearance, three command-palette entries and rebindable shortcuts (⌘⌥=, ⌘⌥-, ⌘⌥0 on macOS; unbound by default on Windows and Linux, where Ctrl+Alt is AltGr). The Source and Diff views keep their size.

## Good to know before installing

Desktop-only (desktop/plugin.js inside the plugin SDK surface); appends one stylesheet that sets CSS zoom on the preview's [data-preview-markdown] element, removed on disable, so a Desktop release that renames that attribute turns the plugin into a no-op; stores the chosen size in plugin storage; no network calls, credentials, shell commands, background processes or telemetry.

From the plugin's catalog listing.

## How to install

1. Install it. Hermes asks for any API keys it needs, then asks whether to turn it on.

```bash
hermes plugins install preview-text-size
```

2. Said no? Turn it on later:

```bash
hermes plugins enable preview-text-size
```

3. Restart Hermes so it loads the plugin.

Some plugins also need a sign-in or settings: see the official page. Memory plugins ask whether to become your memory provider instead. Steps follow the official plugins guide: https://hermes-agent.nousresearch.com/docs/user-guide/features/plugins

## Facts

- Category: Coding & developer tools, Hermes Desktop add-ons
- Maintained by: pandengyao (Community)
- Needs: No API keys declared
- Requires Hermes: `>=0.22.0`
- Version: 1.0.0
- In the catalog since: 2026-10-23

## Links

- [Full setup and settings (official page)](https://hermes-agent.nousresearch.com/docs/plugins/preview-text-size)
- [Source code](https://github.com/pandengyao/hermes-preview-text-size/blob/258f6491424ccabcd520c2f61499e5cc26b6a51a/README.md)
- [All plugins](https://hermeswatcher.com/plugins.md)

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