Sonarr/frontend/src/Series/Index/Select/SeriesIndexPosterSelect.css

.checkButton {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 3;
  width: 36px;
  height: 36px;
}

.checkContainer {
  position: absolute;
  top: 8px;
  left: 8px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: var(--defaultColor);
}

.selected {
  color: var(--sonarrBlue);
}

.unselected {
  color: var(--white);
}

.checkButton {
  &:hover {
    .selected {
      color: var(--white);
    }

    .unselected {
      color: var(--sonarrBlue);
    }
  }
}