text: import { registerStyles, css } from '@vaadin/vaadin-themable-mixin/register-styles.js';
  import '@vaadin/vaadin-lumo-styles/font-icons.js';
  import '@vaadin/vaadin-lumo-styles/mixins/field-button.js';
  import '@vaadin/vaadin-text-field/theme/lumo/vaadin-text-field.js';
  
  registerStyles(
    'vaadin-combo-box',
    css`
      :host {
        outline: none;
      }
  
      [part='toggle-button']::before {
        content: var(--lumo-icons-dropdown);
      }
    `,
    { moduleId: 'lumo-combo-box', include: ['lumo-field-button'] }
  );
  