retail-app/unpackage/dist/dev/mp-weixin/app.json

{
  "pages": [
    "pages/index/index"
  ],
  "window": {
    "navigationBarTextStyle": "black",
    "navigationBarTitleText": "uni-app",
    "navigationBarBackgroundColor": "#F8F8F8",
    "backgroundColor": "#F8F8F8"
  },
  "usingComponents": {}
}