The application allows users to create a personalized holiday card with a snowflake design using Python and the Pygame library. The user can draw on the screen using their mouse, and once they click the "CREATE" button, the program generates a snowflake and saves it as an image. The user can then send the image via email using SendGrid and Python. The application includes features such as customizable layout, drawing functionality, and email sending capabilities. It is designed to be fun and educational for users of all skill levels.