Go to ZoomSounds > Settings > Appearence and in Extra CSS enter

General colors

 body .audioplayer.skin-silver .ap-controls .ap-controls-right .meta-artist-con, body .audioplayer.skin-silver .ap-controls .ap-controls-right .total-time, body .audioplayer.skin-silver .ap-controls  .curr-time{
    color: #23adca;
}  
  body .audioplayer.skin-silver .ap-controls .ap-controls-left .con-playpause .playbtn path{
    fill: #0000ff;
}

body .audioplayer.skin-silver .ap-controls .ap-controls-left .con-playpause .playbtn path,body .audioplayer.skin-silver .ap-controls .ap-controls-left .con-playpause .pausebtn path{
    background-color: #00ff00;
}

Background

body .audioplayer.skin-silver .ap-controls{
    background-color:  #ff0000;
}

Scrubbar color

go to player configs > edit the configuration you are using > go to MISC > and in extra CSS enter

body $classmain .ap-controls .scrubbar .scrub-bg:not(.a):not(.a){ background-color: #da2134; }

Highlight color

change the yellow color

body .audioplayer.skin-silver .ap-controls .scrubbar>.scrub-prog{
background-color: #ff0000;
}
body .audioplayer.skin-silver a{
color: #ff0000;
}

and Save

Scrubbar progress color

.audioplayer.skin-silver .ap-controls .scrubbar > .scrub-prog{ background-color: #ff0000; }

Scrubbar progress hover

body .audioplayer .ap-controls .scrubbar .scrubBox-hover { background-color: #00ff00; }