ChromaFlow matches the now playing UI to your music’s album artwork and optionally adds in an iOS 10 style music player on the lock screen. It has three dynamic lock screen size modes, adds shuffle and repeat buttons for playlists, and colorizes the Music app’s now playing view and mini player view.
Chromaflow has full support for only iOS 14.2-14.8. Resizing and the full screen media player does not work on iOS 15 or higher!
Developers can add support for ChromaFlow with the API found here.