The provided source, "og.new," describes an application that allows users to customize and export images.

Features and functionalities of this application:

• Template Properties: Users can customize an image by changing its properties.

• Background Customization: The application allows users to set a custom background for their image. It includes options such as:

  • Gradient Direction

  • Grid Overlay

  • New background setting

• Save Image: The application provides a feature to export the customized image as a PNG file.

• Open Graph Meta Tags: The application's documentation includes information about Open Graph meta tags, though their specific function in the application is not detailed in the provided source.

In summary, this application is designed for quick image customization with a focus on background options and properties. It also includes saving and exporting images as PNG files.