static/themes/metro-gray/progressbar.css

.progressbar {
  border-width: 1px;
  border-style: solid;
  -moz-border-radius: 0px 0px 0px 0px;
  -webkit-border-radius: 0px 0px 0px 0px;
  border-radius: 0px 0px 0px 0px;
  overflow: hidden;
  position: relative;
}
.progressbar-text {
  text-align: center;
  position: absolute;
}
.progressbar-value {
  position: relative;
  overflow: hidden;
  width: 0;
  -moz-border-radius: 0px 0 0 0px;
  -webkit-border-radius: 0px 0 0 0px;
  border-radius: 0px 0 0 0px;
}
.progressbar {
  border-color: #abafb8;
}
.progressbar-text {
  color: #404040;
  font-size: 12px;
}
.progressbar-value .progressbar-text {
  background-color: #84909c;
  color: #fff;
}