Feature Request: Advanced Multi-Background Management with Login Screen Support

This feature would significantly enhance the user experience by allowing for a more dynamic and personalized desktop environment. The core idea is to introduce a robust multi-background management system with two key capabilities:

1. Multi-Background Playlist & Management:

Users can select multiple video/image files to act as a dynamic playlist for their wallpaper.

Provide controls to manage the playlist: set the order, define a primary (first) wallpaper, and configure the playback behavior (e.g., play once, loop all, or loop a specific selection).

This allows for complex sequences, such as playing an introductory animation only on login, followed by a looping ambient animation.

2. Integrated Lock Screen Support:

The feature should extend to the Windows Lock Screen, eliminating the need for third-party tools like the mentioned "LockscreenGif" project.

For instance, a user could set an animated GIF or video (e.g., the Windows 11 Bloom animation) to play smoothly on the lock screen and then transition seamlessly to the desktop background upon login.

This would create a unified and immersive visual experience, making the entire Windows session feel more cohesive and modern.

Benefit: This feature would transform Lively Wallpaper from a simple wallpaper tool into a comprehensive "Windows Experience" manager, greatly increasing its appeal and utility for users who value deep personalization. It addresses a common user desire to have more control over their system's visual flow, from the very first moment they log in.

Check out "LockscreenGif" for an example of the demand for lock screen customization:

Additional context

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