Template:Player/styles.css

.mw-parser-output .infobox-player .infobox-title{
  background:linear-gradient(135deg,#0f5965,#16a085);
}
.mw-parser-output .infobox-player .infobox-image,
.mw-parser-output .infobox-player .infobox-caption{
  background:linear-gradient(180deg,#ebfbf7,rgba(255,255,255,.92));
}
.mw-parser-output .infobox-player th{
  color:#22545b;
}