message: Progress.css: fixed design (2)
diff: .Progress {
  - border-radius: 2px;
  - background: var(--placeholder_icon_background);
  - height: 4px;
  + border-radius: 1px;
  + background: var(--loader_track_fill);
  + height: 2px;
  }
  .Progress__in {
  transition: width .2s ease;
  background: var(--accent);
  }
  -
  -.Progress--sizeY-compact {
  - height: 2px;
  - border-radius: 1px;
  -}
  