.theme-group-remove-button-column {

}

.theme-group-theme-name-column {
  padding-left:10px;
  max-width: 300px;
  width: 300px;
  text-overflow:ellipsis;
  overflow:hidden;
  white-space:nowrap;
}

.theme-group-date-column {
  width: 150px;

}