.spectrum--lightest .spectrum-Popover {
  background-color: rgb(255, 255, 255);
  border-color: rgb(211, 211, 211);
  box-shadow: 0 1px 4px rgba(0,0,0,0.15);
}
.spectrum--lightest .spectrum-Popover .spectrum-Dialog-header,
.spectrum--lightest .spectrum-Popover .spectrum-Dialog-footer,
.spectrum--lightest .spectrum-Popover .spectrum-Dialog-wrapper {
    background-color: transparent;
  }
.spectrum--lightest .spectrum-Popover .spectrum-Popover-tip::after {
    background-color: rgb(255, 255, 255);
    border-color: rgb(211, 211, 211);
    box-shadow: -1px -1px 4px rgba(0,0,0,0.15);
  }