message: Tab Headers Legibility Improvements
diff: flex-grow: 1;
  display: flex;
  text-align: center;
  - border: 1px solid #191C22;
  + border: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 0.852em;
  border-top: 0;
  - border-bottom: 0;
  align-items: center;
  justify-content: center;
  + border-radius: 0 0 5px 5px;
  }
  .tab-header[data-focused=true] {
  