Razroo's Custom Material Theme Background

_themes.scss

// Background palette for light themes.
$razroo-theme-background: (
  status-bar: map_get($razroo-background-yellow, 300),
  map_get($razroo-background-yellow , map_get($razroo-background-yellow),
  map_get($razroo-background-yellow , rgba(map_get($razroo-background-yellow, 500), 0.04), 
  // TODO(kara): check style with Material Design UX
  card: map_get($razroo-background-yellow , 500),
  dialog: map_get($razroo-background-yellow , 500),
  disabled-button: rgba(map_get($razroo-background-yellow, 500), 0.12), raised-button: map_get($razroo-background-yellow , 500),
  focused-button: $dark-focused,
  selected-button: map_get($razroo-background-yellow , 300),
  selected-disabled-button: map_get($razroo-background-yellow , 400), disabled-button-toggle: map_get($razroo-background-yellow , 200), unselected-chip: map_get($razroo-background-yellow , 300), disabled-list-option: map_get($razroo-background-yellow, 200),
);