> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://help.sigmacomputing.com/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://help.sigmacomputing.com/_mcp/server.

# Create and manage workbook themes

> Create and manage reusable Sigma workbook themes for fonts, colors, layout, and table styles, and set an organization default.

Create and manage reusable workbook themes in the **Administration** portal. Customize fonts, colors, layout style, and table style, then assign your organization's default theme.

## User requirements

To create and manage workbook themes, you must be assigned an [account type](/docs/create-and-manage-account-types) with the **Manage all workbook themes and fonts** or **Manage branding settings** permission enabled.

## Theme settings overview

Customize any of the following theme settings to meet branding and aesthetic requirements.

### Color

The **Color** settings control text, button, background, element, and chart colors in a workbook.

| Setting                                                   | Description                                                                                                                                                                                                                                                           |
| :-------------------------------------------------------- | :-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Appearance**                                            | Select between a <img src="https://sigma-docs-screenshots.s3.us-west-2.amazonaws.com/Icons/theme-light.svg" alt="" /> **Light** or <img src="https://sigma-docs-screenshots.s3.us-west-2.amazonaws.com/Icons/theme-dark.svg" alt="" /> **Dark** theme for a workbook. |
| **Theme colors > Swap preset**                            | Set a predefined color theme for workbook text, buttons, background, and charts.                                                                                                                                                                                      |
| **Theme colors > Text**                                   | Sets the color of workbook text for your theme.                                                                                                                                                                                                                       |
| **Theme colors > Highlight**                              | Sets the color of buttons, link text, and selection indicators in your theme.                                                                                                                                                                                         |
| **Theme colors > Surface**                                | Sets the color for element backgrounds, borders, and icons in your theme.                                                                                                                                                                                             |
| **Override colors > Canvas**                              | Sets a custom color for the workbook canvas, different from the canvas color for the theme. Select <img src="https://sigma-docs-screenshots.s3.us-west-2.amazonaws.com/Icons/x-square_clear.svg" alt="" />  **Clear override** to restore the default.                |
| **Categorical colors/Sequential colors/diverging colors** | These are color schemes for the charts in your workbook. You can select a predefined palette or set custom colors to use for your charts.                                                                                                                             |
| **Invert visualization tooltips**                         | Inverts the theme's text and background colors in tooltips.                                                                                                                                                                                                           |

When you specify a color, you can choose a color from a predefined palette, specify a hex code, pick a color from a window or document open on your computer using an eyedropper, or choose a color from a gradient.

### Font

The **Font** settings control fonts throughout the workbook.

| Setting        | Description                                                                                             |
| :------------- | :------------------------------------------------------------------------------------------------------ |
| **Text font**  | Sets the font for non-data workbook text, like element titles, element descriptions, and table headers. |
| **Data font**  | Sets the font for workbook data. The default is Roboto.                                                 |
| **Title font** | Sets the font size and color of element titles.                                                         |

### Layout style

The **Layout style** settings control the layout of workbook pages and elements.

| Setting                             | Description                                                                                                                      |
| :---------------------------------- | :------------------------------------------------------------------------------------------------------------------------------- |
| **Page width**                      | Sets the width of all pages in a workbook. The default is **Full**. Choose **Custom** to set a maximum width for workbook pages. |
| **Spacing**                         | Sets the size of spacing between elements.                                                                                       |
| **Corner**                          | Sets the shape of element corners. Choose from a square, rounded, or pill-shaped corner. The default is round.                   |
| **Data element style > Padding**    | Sets padding for a data element. Select or deselect the checkbox to add or remove padding around a data or control element.      |
| **Data element style > Background** | Sets a custom background color for a data or control element. Set to **Auto** to match the element background for the theme.     |

### Table style

The **Table style** settings control the format and display of tables, pivot tables, and input tables. For more details about table style options, see [Customize table style](/docs/customize-table-style).

| Setting                 | Description                                                        |
| :---------------------- | :----------------------------------------------------------------- |
| **Table style presets** | Applies a preset to configure all table style options.             |
| **Cell spacing**        | Sets the padding around text within table cells.                   |
| **Grid lines**          | Determines how cell borders are displayed.                         |
| **Banding color**       | Choose a color to set as the background for alternating data rows. |
| **Header**              | Formats table headers.                                             |
| **Subheader**           | Formats subheaders *(applicable to pivot tables only)*.            |
| **Cell**                | Formats data cells.                                                |

## Create a theme

Create a workbook theme that can be applied by users across your entire organization:

1. Go to **Administration** > **Account** > **Branding Settings**:

   1. In the Sigma header, click your user avatar to open the user menu.

   2. Select **Administration** to open the **Administration** portal.

   3. In the side panel, select **Account**, then select the **Branding Settings** tab.

2. In the **Workbook Themes** section, click **Add**.

   ![Image of a cursor hovering over the Add button in the Create your own themes section of the Workbook Themes section of the Branding Settings tab.](https://files.buildwithfern.com/sigma.docs.buildwithfern.com/3163345318f4bec21d41458b4fa388816f248cfcfc348c91a919995f3f26c6e5/assets/docs-images/8ace80e-1.png)

3. In the **Save as an organization theme** modal, configure the new theme:

   1. In the **Theme name** field, enter a unique name to identify the theme.
   2. To apply the theme to all workbooks by default, select the **Set as organization default** checkbox.
   3. Customize the [theme settings](#theme-settings-overview).
   4. Click **Save** to submit the theme.

   ![Image of the Save as an organization theme modal, with color and font theme settings visible in addition to the options described in surrounding text.](https://files.buildwithfern.com/sigma.docs.buildwithfern.com/1bb945e1ed35ab54865b0a666ed9ea40dd7cda26579b239ba538d981ee561519/assets/docs-images/8b892e9-organization-theme.png)

## Edit an existing custom theme

Edit an existing theme at any time to update all workbooks using it.

1. Go to **Administration** > **Account** > **Brand Settings**:

   1. In the Sigma header, click your user avatar to open the user menu.

   2. Select **Administration** to open the **Administration** portal.

   3. In the side panel, select **Account**, then open the **Brand Settings** tab.

2. In the **Workbook Themes** section, locate the name of the theme you want to edit, then click <img src="https://sigma-docs-screenshots.s3.us-west-2.amazonaws.com/Icons/more.svg" alt="" /> **More** and select **Edit**.

   ![More menu for a specific theme open, showing Edit, Remove as default, and Delete options.](https://files.buildwithfern.com/sigma.docs.buildwithfern.com/0db43ef7d310a08f18c2ae0e24b6867cf3f83428308a2df0b392431b7bff960f/assets/docs-images/0bce7f1-3.png)

3. In the **Edit organization theme** modal, edit the theme settings as needed, then click **Save**.

   Sigma immediately reflects the changes in all workbooks using the theme.

   The **Save as** setting defaults to the **Update existing** option, which overwrites the existing configurations and updates all workbooks using the theme. To save the changes as a new custom theme, select **New**.

## Change the default theme

The **Default** marker in the list of custom themes indicates your organization's default. If no default marker is displayed, your organization's default is Sigma's built-in **Light** theme.

1. Go to **Administration** > **Account** > **Brand Settings**:

   1. In the Sigma header, click your user avatar to open the user menu.

   2. Select **Administration** to open the **Administration** portal.

   3. In the side panel, select **Account**, then open the **Brand Settings** tab.

2. In the **Workbook Themes** section, locate the name of the theme you want to update, then click <img src="https://sigma-docs-screenshots.s3.us-west-2.amazonaws.com/Icons/more.svg" alt="" /> **More** and select an option in the dropdown:

   * To assign the theme as your organization's default, select **Set as default**.

   * To unassign the theme as your organization's default, select **Remove as default**.

   Sigma applies the default theme to all new workbooks and any existing workbooks in which the theme has remained unchanged since creation.

   ![More menu open for a non-default theme, hovering over the option to Set as default.](https://files.buildwithfern.com/sigma.docs.buildwithfern.com/8364e05b87ebf5aac786091cd86752136e6fb4520ba58626613152a1196120be/assets/docs-images/c81f25c-5.png)

## Apply a theme to a workbook

You can apply a theme to a workbook from [Workbook settings](/docs/workbook-settings-overview)

1. Navigate to **Workbook settings** one of two ways:
   1. Select the document menu, then select **Edit** > **Show workbook settings**.
   2. Click the background of your workbook. From the side panel, select **Workbook settings**.
2. Open the **Theme** dropdown menu and select the desired theme.

![A dropdown menu for selecting theme. Options read "Light" and "Dark."](https://files.buildwithfern.com/sigma.docs.buildwithfern.com/02e19b8607489fb14acda19bca55fdbcfa5a9b9e98e691056e44594350d04843/assets/docs-images/e1eaa40e1b4c80efef1f54a9819009e6ad8c9c73d53cce4faa4884950c02e518-Themes_w_Border.png)

## Delete a custom theme

1. Go to **Administration** > **Account** > **Brand Settings**:

   1. In the Sigma header, click your user avatar to open the user menu.

   2. Select **Administration** to open the **Administration** portal.

   3. In the side panel, select **Account**, then open the **Brand Settings** tab.

2. In the **Workbook Themes** section, locate the name of the theme you want to delete, then click <img src="https://sigma-docs-screenshots.s3.us-west-2.amazonaws.com/Icons/more.svg" alt="" /> **More** and select **Delete** in the dropdown.

   ![More menu open for a workbook theme, hovering over the option to Delete](https://files.buildwithfern.com/sigma.docs.buildwithfern.com/c240a906a4fdbf27a2739b942baa5f40c331db420a62bf71cbe8f98124caeff7/assets/docs-images/6df0ddd-6.png)

3. In the **Delete Workbook Theme** modal, click **Delete** to proceed.

   Sigma permanently deletes the theme from your organization and reverts all workbooks using it to the default theme.

   ![Confirmation modal for the Delete Workbook Theme modal, indicating that the theme will be removed from the theme options and all workbooks using this theme will revert to using the default workbook theme.](https://files.buildwithfern.com/sigma.docs.buildwithfern.com/02387fd33521d0cacb82df81fe7ff57844811dd8a35c2bccb789d02b777b6f00/assets/docs-images/f96dd44-7.png)

## Related resources

* [Upload custom fonts](/docs/custom-fonts)
* [Format and customize a table](/docs/format-and-customize-a-table)