Appearance

Open Settings with ⌘,. It’s a standard macOS settings window with a sidebar of tabs; Appearance is where the terminal’s look lives.

ThemeCopy Anchor Link

Termio uses Ghostty-format themes, so anything from the wider Ghostty theme ecosystem works. Pick a light and a dark theme from Settings ▸ Appearance and Termio follows the system between them.

Each slot includes the built-in themes and any Ghostty-format themes in your Themes folder. Choose Dark under Appearance to keep the dark theme active.

If you already use Ghostty, there’s nothing to pick on a fresh install: Termio reads your ~/.config/ghostty/config on first launch and starts with the font and theme you chose there.

Getting more themesCopy Anchor Link

Open either theme slot to search the built-in schemes and see their color palettes. Select Atom One Dark in the dark slot to use the theme shown in these screenshots.

To switch between the themes you have with your terminals as the preview, open the Command Palette (⇧⌘P) and pick Change Theme… — arrowing through the list restyles your open terminals live, Return keeps the theme, Escape puts it back.

To add another theme, drop a Ghostty-format theme file into:

~/Library/Application Support/termio/Themes/

The Open Themes Folder button takes you straight there, and Reload picks up new files without a restart.

FontCopy Anchor Link

Choose any monospaced font installed on your Mac, set its size, and toggle Thicken glyphs if you like a heavier weight. Font size also has live shortcuts while you work — ⌘= to grow, ⌘- to shrink, ⌘0 to reset.

Cursor & windowCopy Anchor Link

The same tab tunes the cursor (block, bar, or underline; steady or blinking) and the window itself — padding around the terminal, and background opacity and blur for a translucent window over your desktop. The app’s own chrome lives here too: the sidebar’s font and density.

The rest of SettingsCopy Anchor Link

The other tabs cover the rest of the app:

• General — language, the GitHub integration behind the inspector’s Issues pane, and a Privacy switch for anonymous daily usage statistics.
• Terminal — scrollback history and text selection.
• Server — this Mac’s own session host, and the switches for the termio command-line tool. See The Termio server.
• Remote Hosts — every machine you reach from this Mac, one row each, drilling into how that machine is reached and what Termio has installed on it. See Devices.
• Workspaces — every workspace with the machine it’s on, and the place to rename or remove one. See Workspaces.
• Keyboard — rebind any shortcut; see Keyboard shortcuts.
• Agents — add agents, enable them, turn on session control, and set task-completion notifications. Values that differ per machine — where a CLI lives, whether it’s there — appear as one row per machine on the agent’s own page, never behind a picker.
• Usage — token usage for agents you sign in to (Claude Code, Codex). Termio reuses each CLI’s own credentials to show you where you stand against your limits; it stores nothing of its own.
• Mobile — pair your iPhone with a machine, and publish an address it can reach. See the iOS app.
• Community — where to find the project: GitHub, Discord, and the WeChat group.

Machines are rows, never a picker. A setting that differs per machine lists one row per machine where it belongs — the agent’s own page for a command path — and a machine’s whole story is reached by navigation: Server for this Mac, a row under Remote Hosts for any other.