> ## Documentation Index
> Fetch the complete documentation index at: https://docs.jinba.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Appearance Settings

> Theme, language, text size, and the send key

Under "**Personal > Theme & Language**" in Settings, you can adjust how the app looks.

## Theme

| Option     | Description                           |
| ---------- | ------------------------------------- |
| **Light**  | Bright color scheme (default)         |
| **Dark**   | Dark color scheme                     |
| **System** | Follows your OS setting automatically |

## Language

Choose the app's display language: **日本語 / English**.

<Note>
  This setting changes **the display language of the interface**. In chat, the AI generally responds in the language you write in (an explicit instruction always wins).
</Note>

If you have never chosen a language here, sending a prompt in Japanese triggers a one-time banner offering to switch the interface to Japanese — accept to switch, or decline to keep the current language. Once you pick a language here, the banner never appears.

## Text size

Choose the app-wide text size: **Small / Standard / Large**. Spacing scales proportionally to keep the layout balanced. Browser zoom (`⌘/Ctrl` + `+` / `-`) works alongside it.

## Sending messages

Choose which key sends a chat message — the other inserts a line break.

| Option               | Behavior                                            |
| -------------------- | --------------------------------------------------- |
| **Enter** (default)  | `Enter` sends; `Shift + Enter` inserts a newline    |
| **⌘ / Ctrl + Enter** | `⌘ / Ctrl + Enter` sends; `Enter` inserts a newline |

* `⌘ / Ctrl + Enter` always sends in both modes, and the choice is saved **per device**
* On phones and tablets, Return inserts a line break by default, regardless of the option above. Touch devices additionally show a "**Keep this behavior on touch screens**" checkbox that applies your chosen send key ("this behavior") to the touch device as well — turn it on for a tablet with a hardware keyboard