Post Avatar is a WordPress plugin that allows authors to select images from a predefined list while editing posts. This feature enriches the visual aspect of posts by displaying chosen images alongside the content. It supports various image formats including .jpg, .jpeg, .gif, and .png, and scans images located in subdirectories of the designated image folder. The plugin is designed for easy customization, allowing users to edit HTML/CSS tags directly from the settings, and supports template tags and filters for advanced modifications.

The plugin also ensures international language support, covering multiple languages such as French, German, Spanish, and more. It efficiently handles missing images by not displaying them, and can be extended to show images for pages and custom post types. With its flexible customization options and user-friendly interface, Post Avatar is a valuable tool for enhancing post aesthetics on WordPress sites.