> For the complete documentation index, see [llms.txt](https://docs.fullscreen.no/info/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.fullscreen.no/info/game-creator-2-assets/mailbox/guides-and-demo-scene/letter-themes.md).

# Letter Themes

{% hint style="info" %}
Both the **Mailbox Component** and the **Letter UI Component** have a **"Use Theme"** toggle. This must be **enabled** for Letter Themes to be applied.

By default, only the **Farm** example UI is set up to use themes. If you're creating a different UI style, make sure to **enable the theme option** in both components if you want the letters to apply the themes to the UI elements.
{% endhint %}

#### **Letter Themes – Customizing Your Letters**

LetterTheme assets allow you to fully customize the look and feel of each letter, adding personality and atmosphere to your game's mail system. Inspired by games like *Stardew Valley*, themes let you create unique styles for different types of letters, whether it's a **romantic love letter**, a **mysterious and eerie warning**, or a **formal guild request**.

#### **Creating and Using Letter Themes**

* **Create a New LetterTheme Asset** – Easily define a custom style.
* **Assign a Theme to a Letter** – Inside each letter, choose the theme that fits best.
* **Enjoy a Fully Customizable Mailbox** – Enhance immersion and presentation.

#### **Letter Theme Customization Fields**

Each theme has various settings to personalize the **appearance of letters in your mailbox UI**:

* **Read Icon** – The sprite displayed when a letter has been read.
* **Unread Icon** – The sprite for new or unread letters.
* **Title Text Color** – The color of the letter's title.
* **Sender Text Color** – The color of the sender's name.
* **Date Text Color** – The color of the date displayed on the letter.
* **Description Text Color** – The color of the letter body.
* **Letter Button Background Color** – The background color of the letter in the mailbox list.
* **Details Background Color** – The background color of the letter’s content panel.
* **Details Scrollbar Color** – The color of the scrollbar in the details panel.
* **Details Scrollbar Handle Color** – The color of the scrollbar handle.

#### **Why Use Letter Themes?**

* Improve the **visual variety** of your mailbox.
* Make important letters **stand out** with unique colors and icons.
* Create a **thematic experience** that enhances immersion.

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