-button-flat-focus-color: var(--paper-red-50);
    }
    paper-button.red:hover {
      background: var(--paper-red-50);
    }
    paper-button.green {
      color: var(--paper-green-500);
      --paper-button-flat-focus-color: var(--paper-green-50);
    }
    paper-button.green:hover {
      background: var(--paper-green-50);
    }
    paper-button.orange {
      color: var(--paper-orange-500);
      --paper-button-flat-focus-color: var(--paper-orange-50);
    }
    paper-button.orange:hover {
      backgr