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Release: Australia · Updated: 2026-03-12 · Official documentation · View source

Manage the visual style of UI Builder experiences

Themes enable you to change the visual style of your UI Builder experiences so that they express the look and feel of your brand

Getting started with themes

By default, the Polaris theme is applied to UI Builder experiences. For more information, see Working with themes in Next Experience.

Create a new theme with Theme Builder

Theme Builder enables you to create, edit, manage, and apply Next Experience themes using a friendly visual interface. For more information, see Configuring Next Experience with Theme Builder.

Create a custom theme

If you are an admin user comfortable working in style records and JSON code, you can create a custom theme to override the default Polaris style. This option gives you the most control over typefaces, colors, and images (including the banner and logo) in a theme. For more information, see Configuring Next Experience themes and preferences.

Working with dark theme

If you are interested in dark theme, see Working with the dark theme.

Create custom style classes and rules

Use style classes rules in UI Builder to apply custom visual styling to UI elements by referencing CSS classes, see Create custom style classes and rules.

  • View experience theme
    View the theme applied to your experience. The theme sets the visual style of the experience and provides a consistent look and feel across all pages.
  • Create custom style classes and rules
    Use style classes rules in UI Builder to apply custom visual styling to UI elements by referencing CSS classes.

Parent Topic:Working in UI Builder