flame/client/src/components/Settings/Themer/Themer.module.css

.ThemerGrid {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr;
  grid-auto-rows: 100px;
}

@media (min-width: 340px) {
  .ThemerGrid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 680px) {
  .ThemerGrid {
    grid-template-columns: 1fr 1fr 1fr;
  }
}