Template:EmuPerformance/styles.css

.emu-badge {
  display: inline-block;
  padding: 0.25em 0.6em;
  margin: 0.1em;
  border-radius: 999px;
  font-weight: bold;
  font-size: 90%;
  color: white;
  background-color: #888; /* fallback */
}

.emu-badge.good {
  background-color: #4CAF50;
}

.emu-badge.mid {
  background-color: #FFEB3B;
  color: black;
}

.emu-badge.bad {
  background-color: #F44336;
}