:root {
  --fc-button-text-color: #fff;
  --fc-button-bg-color: #6aa3d8;
  --fc-button-border-color: #6aa3d8;
  --fc-button-hover-bg-color: #5a92c8;
  --fc-button-hover-border-color: #5a92c8;
  --fc-button-active-bg-color: #4a7ba7;
  --fc-button-active-border-color: #4a7ba7;
}