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tty7/docs/reference/configuration.mdx
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l0ng-ai 89426fb5c4 fix(links): keep the path when a template token holds an absent value 
`link_file_command` dropped a whole token whose value was missing. That is
right for `--line={line}`, where the flag means nothing without it, but the
same rule threw the file away in `code --goto {path}:{line}:{column}` —
which is VS Code's own spelling, and one of the three examples the docs
offer, `zed {path}:{line}` being another. Clicking a link that carried no
line number ran `code --goto` with no file and opened nothing, silently.

A token that has already produced the path now keeps it and stops there,
taking the separator that introduced the absent value with it so the
argument ends at the path rather than at a bare `:`. Tokens with no path in
them still go entirely, so the documented flag behaviour is unchanged.

This edge was noted in a test that asserted it as a "sharp edge" rather
than fixing it; that test now asserts the file opens.
2026-08-16 17:05:52 +08:00

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---
title: "config.json"
description: "Every key tty7 reads, its type, and its default."
---
| | |
|---|---|
| macOS / Linux | `~/.config/tty7/config.json` |
| Windows | `%APPDATA%\tty7\config.json` |
| Override the whole directory | `TTY7_CONFIG_DIR` |
Every key is optional — a missing one means its default, so you only write what
you change. Out-of-range numbers are clamped rather than rejected, and an
unrecognised enum value falls back to the default with a log line instead of
failing the file.
```json
{
"font_family": "JetBrains Mono",
"font_size": 14,
"theme_follow_system": true,
"theme_preset_light": "one_light",
"theme_preset_dark": "dracula",
"macos_option_as_alt": true,
"scrollback_limit": 50000
}
```
## Typography
| Key | Type | Default | |
|---|---|---|---|
| `font_family` | string | `"Hack"` | Primary face. Hack is bundled. |
| `font_fallbacks` | string[] | platform list | Ordered fallbacks. Stock platform faces are appended to whatever you write. |
| `font_family_bold` | string | — | A distinct bold face. |
| `font_family_italic` | string | — | A distinct italic face. |
| `font_features` | object | — | OpenType tags, e.g. `{"calt": true, "liga": 1}`. Four alphanumeric characters per tag. |
| `font_size` | number | `15` | Terminal text size in px (4–256). |
| `line_height` | number | `1.4` | Multiple of the font size (0.5–4). |
| `ui_font_size` | number | `16` | The interface's root size in px (12–24). |
[More about fonts →](/customization/fonts)
## Theme and window
| Key | Type | Default | |
|---|---|---|---|
| `theme_preset` | string | `"light"` | Active theme id. |
| `theme_follow_system` | bool | `false` | Follow the OS appearance. |
| `theme_preset_light` | string | `"light"` | Used when following the system. |
| `theme_preset_dark` | string | `"dark"` | Used when following the system. |
| `theme_legible_palette` | bool | `true` | Brighten or darken bright ANSI colours that would be unreadable on the background. |
| `window_opacity` | number | — | 0.2–1.0. Unset means "follow the theme". |
| `window_blur` | bool | — | Blur behind a translucent window (macOS). Unset means "follow the theme". |
| `window_backdrop` | enum | `"auto"` | Windows only: `auto`, `blur`, `mica`, `mica-alt`, `acrylic`, `off`. |
| `dim_inactive_panes` | bool | `true` | Dim panes that are not focused. |
| `startup_mode` | enum | `"normal"` | `normal`, `maximized`, `fullscreen`. |
| `remember_window_size` | bool | `true` | Reopen at the last size and position. |
| `restore_session` | bool | `true` | Reopen the last window's tabs, splits, and directories. |
| `gui_language` | enum | `"en"` | `en`, `zh-CN`, `ja-JP`. Anything else falls back to `en`. |
Built-in theme ids: `light`, `one_light`, `catppuccin_latte`, `rose_pine_dawn`,
`dark`, `dracula`, `harbor`, `one_dark_pro`, `rose_pine`. Your own themes take
their id from the file name. [More about themes →](/customization/themes)
## Tabs, sidebar, panels
| Key | Type | Default | |
|---|---|---|---|
| `tab_bar_position` | enum | `"left"` | `left` (sidebar) or `top` (strip). |
| `new_tab_position` | enum | `"after-current"` | Or `end`. |
| `sidebar_grouping` | enum | `"repo"` | Or `repo-or-directory` to group non-repo tabs by their folder, or `none` for a flat list. |
| `sidebar_diff_preview` | bool | `true` | Clicking a row's `+N −M` opens the diff overlay. |
| `sidebar_width` | number | `220` | Pixels (180–2000). Also capped to the window. |
| `sidebar_collapsed` | bool | `false` | |
| `right_panel_visible` | bool | `false` | |
| `right_panel_width` | number | `260` | Pixels (216–2000). Also capped to the window. |
| `right_panel_tab` | enum | `"info"` | `info`, `changes`, `files`. |
| `diff_view` | enum | `"split"` | Or `unified`. Global, not per file. |
| `scm_graph_expanded` | bool | `false` | Whether the history section starts open. |
| `show_tray_icon` | bool | `true` | The tray / menu bar status item. |
## Terminal
| Key | Type | Default | |
|---|---|---|---|
| `shell` | object | — | `{"program": "fish", "args": ["-l"]}`. Unset uses the platform default. `args` you write are launched verbatim, which also turns off [shell integration](/reference/shell-integration) for that shell — leave them out to keep it. |
| `custom_shells` | array | `[]` | Extra entries for the new-tab menu: `[{"label": "Ubuntu", "program": "wsl.exe", "args": ["-d", "Ubuntu"]}]`. Launched exactly as written, listed after the detected shells. Give an entry arguments and tty7 also skips [shell integration](/reference/shell-integration) for it, so it has no prompt marks, working-directory tracking, or command-finished notifications; an entry with no arguments, on a shell tty7 recognizes, is integrated like the detected row beside it. An entry with no `program` is skipped; with no `label` it is named after its program. |
| `working_directory` | object | `{"strategy":"inherit"}` | `strategy` is `inherit`, `home`, or `custom`; `path` is used when custom. |
| `env` | object | `{}` | Extra environment variables for every pane. |
| `scrollback_limit` | number | `10000` | Lines per pane (100–100,000). New panes only. |
| `cursor_style` | enum | `"block"` | `block`, `bar`, `underline`. |
| `cursor_blink` | bool | `true` | |
| `bell` | enum | `"visual"` | `none`, `visual`, `audible`, `both`. |
| `per_pane_history` | bool | `false` | Give each pane its own shell history file. |
## Mouse and scrolling
| Key | Type | Default | |
|---|---|---|---|
| `mouse_scroll_multiplier` | number | `1.0` | 0.1–10. |
| `smooth_scroll` | bool | `true` | Ease each wheel notch. Trackpads unaffected. |
| `mouse_reporting` | bool | `true` | Let full-screen apps handle clicks and scrolling. |
| `mouse_hide_while_typing` | bool | `true` | |
| `focus_follows_mouse` | bool | `false` | |
## Input and clipboard
| Key | Type | Default | |
|---|---|---|---|
| `prompt_editor` | bool | `true` | tty7 edits the shell prompt. Off sends every key at the prompt to the shell, so its own line editor (ZLE, readline) owns editing. Shell integration stays on. |
| `tab_completion` | bool | `true` | tty7's completion menu on <kbd>⇥</kbd>. Off hands the key to the shell. Needs `prompt_editor`. |
| `history_search` | bool | `true` | tty7's fuzzy history on <kbd>⌃ R</kbd>. Off hands the key to the shell. Needs `prompt_editor`. |
| `smart_select` | bool | `true` | Double-click grabs URLs, paths, bracket pairs, CJK words. |
| `word_separators` | string | see below | Characters that end a word. Used when smart selection is off. |
| `copy_on_select` | bool | `false` | |
| `clipboard_trim_trailing_spaces` | bool | `false` | |
| `macos_option_as_alt` | bool | `false` | <kbd>⌥</kbd>+key sends the escape chord instead of typing a special character. |
| `keybindings` | object | `{}` | `{"SplitRight": "cmd-d"}`. [Syntax →](/customization/keybindings) |
| `keybinding_preset` | string | `"default"` | Or `"tmux"`. |
| `prefix` | string | `"ctrl-b"` | The tmux preset's prefix. One chord carrying a real modifier — anything else falls back to the default. |
The default `word_separators` are a comma, a box-drawing bar, a backtick, a
pipe, a colon, both quote characters, a space, the six bracket characters, the
angle brackets, and a tab:
```json
{ "word_separators": ",│`|:\"' ()[]{}<>\t" }
```
## Links
| Key | Type | Default | |
|---|---|---|---|
| `link_url` | bool | `true` | Underline and open URLs on ⌘/Ctrl-click. |
| `link_file_open` | string | `internal` | What a file link opens: `internal` (tty7's editor, at the line), `system` (the OS file association), `command`. A file on another machine always uses `internal`. |
| `link_file_command` | string | — | Command for file links under `link_file_open: command`. `{path}`, `{line}`, `{column}` are substituted; a missing value is dropped with whatever introduced it, keeping the path. |
| `ssh_loopback_forward` | bool | `false` | Open `localhost:PORT` links through a temporary forward when the pane is in SSH. |
## Notifications
| Key | Type | Default | |
|---|---|---|---|
| `notify_on_command_finish` | enum | `"unfocused"` | `never`, `unfocused`, `always`. |
| `notify_threshold_secs` | number | `10` | How long a command must run to qualify (1–3600). |
## Agents
| Key | Type | Default | |
|---|---|---|---|
| `agent_commands` | object | `{}` | Map a wrapper command to an agent slug: `{"cc": "claude"}`. Read once per server, so a new entry needs `tty7 server restart`. |
| `restore_agent_sessions` | bool | `true` | Relaunch an agent conversation when a lost pane is restored. |
| `install_cli_on_path` | bool | `true` | Put the bundled `tty7` command on PATH at launch. |
[Agent slugs →](/agents/overview#your-own-wrapper)
## SSH
| Key | Type | Default | |
|---|---|---|---|
| `ssh_profiles` | array | `[]` | Managed from **Settings → SSH**. Secrets live in the OS keychain, never here. |
| `verify_host_keys` | bool | `true` | |
| `ssh_warn_on_close` | bool | `false` | Confirm before closing a live connection. |
## Updates and network
| Key | Type | Default | |
|---|---|---|---|
| `check_for_updates` | bool | `true` | |
| `update_channel` | enum | `"stable"` | Or `nightly`. |
| `auto_download_updates` | bool | `true` | Fetch and verify in the background so installing is a restart. Packages are ~25–30 MB and a check happens every six hours. |
| `http_proxy` | string | — | For tty7's *own* traffic only — update checks, downloads, remote-server installs. `http://…` or `socks5://…`. Programs in a pane are unaffected. |
[Updates →](/reference/updates)
## Keys tty7 manages itself
`ssh_profile_frecency` and `command_frecency` record how often and how recently
you use a profile or command, so the pickers can rank them. They are written by
the app; there is no reason to edit them.
<Note>
If the file cannot be parsed, tty7 starts on defaults, keeps your original at
`config.json.corrupt`, and logs the reason. It never silently overwrites what
you wrote.
</Note>
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