@mixin mw-search-bar-theme($theme) {
  $background: (
    mw-app-bar: var(--graphite600),
  );

  $foreground: (
    mw-app-bar: var(--white100),
    mw-app-bar-icon: var(--white60),
    mw-app-bar-divider: var(--graphite500),
  );

  $theme-background: map-get($theme, background);
  $theme-foreground: map-get($theme, foreground);

  $background: map-merge($background, $theme-background);
  $foreground: map-merge($foreground, $theme-foreground);
}