> For the complete documentation index, see [llms.txt](https://docs.polarity.io/integrations/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.polarity.io/integrations/build-an-integration/customizing-the-overlay-window.md).

# Customizing the Overlay Window

- [Templates](https://docs.polarity.io/integrations/build-an-integration/customizing-the-overlay-window/templates.md): Use the Handlebars templating language to customize the look of your integration.
- [Conditionals](https://docs.polarity.io/integrations/build-an-integration/customizing-the-overlay-window/templates/conditionals.md): conditionally show information in templates using if, unless, and else helpers.
- [Displaying a List of Items](https://docs.polarity.io/integrations/build-an-integration/customizing-the-overlay-window/templates/displaying-a-list-of-items.md)
- [Display Object Properties](https://docs.polarity.io/integrations/build-an-integration/customizing-the-overlay-window/templates/objects.md)
- [Built-in Helpers](https://docs.polarity.io/integrations/build-an-integration/customizing-the-overlay-window/templates/built-in-helpers.md): Handlebars includes a collection of useful built-in helpers to assist with displaying data
- [Displaying Icons](https://docs.polarity.io/integrations/build-an-integration/customizing-the-overlay-window/templates/displaying-icons.md): Make use of Font Awesome icons in your templates
- [Component File](https://docs.polarity.io/integrations/build-an-integration/customizing-the-overlay-window/component-file.md): Create computed properties, trigger actions, and add interactive elements to your template
- [Aliased Properties](https://docs.polarity.io/integrations/build-an-integration/customizing-the-overlay-window/component-file/aliased-properties.md)
- [Computed Properties](https://docs.polarity.io/integrations/build-an-integration/customizing-the-overlay-window/component-file/computed-properties.md): Define new properties using computed properties
- [Event Hooks](https://docs.polarity.io/integrations/build-an-integration/customizing-the-overlay-window/component-file/event-hooks.md): Integration relation event hooks
- [CSS Styles](https://docs.polarity.io/integrations/build-an-integration/customizing-the-overlay-window/styles.md): Style your integration with less stylesheets