.prettycheckbox > a,
.prettyradio > a {
  background-image: url('../img/tools/sprites-sfa68604977.png');
}
.prettycheckbox.blue > a,
.prettyradio.blue > a {
  background-image: url('../img/tools/sprites-blue.png');
}
.prettycheckbox.red > a,
.prettyradio.red > a {
  background-image: url('../img/tools/sprites-red.png');
}
.prettycheckbox.green > a,
.prettyradio.green > a {
  background-image: url('../img/tools/sprites-green.png');
}