Badges refer to visual indicators that are used to communicate information or status to the user. Badges are commonly used to highlight important events or actions within the app, such as new messages, notifications, or achievements. Badges can also be used to indicate the status of a feature or function within the app, such as whether it is enabled or disabled. Badges are typically displayed as small icons or labels within the app, and can be customized to match the app's branding and design.