Where does Mini Program define the navigation bar style after setting "navigationStyle": "custom"?

how to write the navigation bar style after setting custom? Is
still written under the json file? And can only use the attributes listed in the document?
can I modify the heading spacing of the navigation bar?

Mar.22,2021

can be changed in app.json. For more information, please see developer documentation , but not in the spacing setting document.
Code:

{
  "pages":[
    "pages/index/index",
    "pages/logs/logs"
  ],
  "window":{
    "backgroundTextStyle":"light",
    "navigationBarBackgroundColor": "-sharp44c9fb",
    "navigationBarTitleText": "",
    "navigationBarTextStyle":"-sharpfff",
    "navigationStyle":"custom"
  }
}

effect:

clipboard.png

After setting

, the default title is gone. To customize the title, write


in .wxml, after setting the custom mode, the title, page jump, which is equivalent to blank paper, all need to be written by yourself, but other forwarding functions still have

.
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