jupyterlab/packages/jldbq-extenison/style/button.css

.jldbq-btn {
  width: 95px;
  height: 33px;
  padding: 0;
  border: none;
  background-color: #edf0f6;
  color: #4a4a4a;
  border-radius: 0;
}

.jldbq-btn.jldbq-btn-current {
  background-color: #d1e4f6;
}

.jldbq-btn:hover:not(.jldbq-btn-current) {
  opacity: 0.8;
}

.jldbq-btn-add {
  display: flex;
  align-items: center;
  padding: 0;
  background: none;
  border: none;
  color: #147bd1;
  cursor: pointer;
}

.jldbq-btn-add:hover {
  opacity: 0.8;
}