I can add a button with text in react-bootstrap using code like

        <Button

          className={styles.feedbackButtonRating}

          variant={this.state.liked ? 'success' : 'light'}

          onClick={this.handleOnLikeClick}

        >

          {FEEDBACK_LIKE_BUTTON_TEXT}

        </Button>

Is there a way to replace {FEEDBACK_LIKE_BUTTON_TEXT} text with a thumb up icon?