message: Cell: supported themes for __main and separator in List
diff: @import '../../styles/constants.css';
  +@import '../../styles/scheme.css';
  .Cell {
  position: relative;
  .Cell__main {
  flex-grow: 1;
  max-width: 100%;
  - color: #000;
  + color: var(--text_primary);
  white-space: nowrap;
  overflow: hidden;
  }
  bottom: 0;
  width: 10000px;
  height: 1px;
  - background: var(--separator);
  + background: var(--separator_common);
  content: '';
  }
  