The CSS rules applying to the volume slider in the desktop web browser need to be altered so that they dynamically set the slider color to contrast the background if the user is logged into a Pandora Premium account. A simple `@media(){}` declaration which changes the black to white on very dark backgrounds would be sufficient. This is because the background color changes to match the album artwork, and with a very dark background (e.g. derived from a black album cover art) makes the volume slider practically invisible, and very frustrating to find and interact with. See the example screenshot below for reference: mod edit: changed title for clarity ... View more