:root {
  /*
   * Not great that these are in px, but not sure what else to do.
   */
  --app-bar-height: 48px;
  --input-row-height: 2rem;
  --interface-padding: 16px;
  --nav-width: 21rem;

  /* coloUrs */
  /* Really, we need:
   * - Dark header background
   * - Medium sidebar background
   * - Light channel background
   * - okay/warn/error
   * - Border colours?
   * - Text colour
   * - Hover colour
   * - Active colour
   */
  --colour-background: #253031;
  --colour-border: #192122;

  --colour-background-alt: #426A5A;
  --colour-border-alt: #2E4A3E;

  --colour-text: #FFFFEA;

  --colour-okay: #6A994E;
  --colour-warn: #EBC3BE;
  --colour-error: #DE5F55;
}