> For the complete documentation index, see [llms.txt](https://docs.jetadmin.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.jetadmin.io/classic-app-builder/appearance-and-localization/app-theming.md).
# App Theming
App theming allows you to style your pages and components using global controls, making it easy to change the visual layout with a single click.
There are two default themes:
* White
* Dark
Using [CSS for App](/classic-app-builder/appearance-and-localization/global-css-and-js.md) you can customize the theme further by updating the following items:
1. [**Menu Style**](https://docs.jetadmin.io/user-guide/design-and-structure/css-for-app#menu-style)**:** menu background color
2. [**App font**](https://docs.jetadmin.io/user-guide/design-and-structure/css-for-app#text-field-style)**:** It changes the font family used in the app.
3. [**Primary Color**](https://docs.jetadmin.io/user-guide/design-and-structure/css-for-app#text-field-style) - It applies to all the components/widgets in your app.
---
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