* {
  engine: none;
  background-image: none;
  padding: 0;
  border-radius: 0;
  border-width: 0;
  border-style: none;
  background-color: rgba(0,0,0,0);
}

GtkWindow,
GtkEventBox {
  background-color: #000;
}

GtkButton {
  border-image-source: url("border-image-balls.png");
  border-image-slice: 20;
  border-image-repeat: stretch;
  border-width: 5;
  border-style: solid;
}

.stretch-stretch { border-image-repeat: stretch stretch }
.stretch-repeat { border-image-repeat: stretch repeat }
.stretch-round { border-image-repeat: stretch round }
.stretch-space { border-image-repeat: stretch space }
.repeat-stretch { border-image-repeat: repeat stretch }
.repeat-repeat { border-image-repeat: repeat repeat }
.repeat-round { border-image-repeat: repeat round }
.repeat-space { border-image-repeat: repeat space }
.round-stretch { border-image-repeat: round stretch }
.round-repeat { border-image-repeat: round repeat }
.round-round { border-image-repeat: round round }
.round-space { border-image-repeat: round space }
.space-stretch { border-image-repeat: space stretch }
.space-repeat { border-image-repeat: space repeat }
.space-round { border-image-repeat: space round }
.space-space { border-image-repeat: space space }

#red {
  background-image: url("border-image-ball-red.png");
}

#yellow {
  background-image: url("border-image-ball-yellow.png");
}

#yellow-3 {
  background-image: url("border-image-3-balls-yellow.png");
}

#green {
  background-image: url("border-image-ball-green.png");
}

#green-3 {
  background-image: url("border-image-3-balls-green.png");
}