微信小程序跳转页面的文字编写

微信小程序的左上角特惠活动怎么写

https://developers.weixin.qq.com/miniprogram/dev/framework/config.html#%E9%A1%B5%E9%9D%A2%E9%85%8D%E7%BD%AE

{
  "navigationBarBackgroundColor": "#ffffff",
  "navigationBarTextStyle": "black",
  "navigationBarTitleText": "特惠活动",
  "backgroundColor": "#eeeeee",
  "backgroundTextStyle": "light"
}