Step 4: Customize your Audio Player appearance on Style tab
On Syle tab, first of all, you can choose your Color Scheme. If you decide to use Custom scheme you can choose not only Color or Transparent but also Image Background type so that you will be able to upload a custom Background image. Below you can change colors of Background image overlay, Text and Accent.
In Custom CSS section you can add a CSS code to customize your widget. For example, you can use CSS code in order to change the background color of the playlist.