If you’ve ever tried to change the icon for SoundPlay playlists via the system’s FileTypes preferences panel, you may have noticed that your changes don’t take hold, and the original icons still show up in the Tracker. This is because the Tracker looks first to see if the supporting application is specifying its own icon, and in fact, SoundPlay does do this.
To remedy this, right-click the SoundPlay application’s icon and choose Add-Ons | FileType from the context menu. In the Supported Types section, select „SoundPlay playlist file,“ then click once in the icon well and tap Ctrl+X to remove the icon. The icon you specified in the system’s FileTypes preferences panel will now appear in the Tracker as it should (or you can just change the custom icon right here in the SoundPlay filetype panel).