Frontend/static/styles/tooltipster/themes/tooltipster-punk.css

.tooltipster-punk {
  border-radius: 5px;
  border-bottom: 3px solid #f71169;
  background: #2a2a2a;
  color: #fff;
}
.tooltipster-punk .tooltipster-content {
  font-family: 'Courier', monospace;
  font-size: 14px;
  line-height: 16px;
  padding: 8px 10px;
}