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"page_action":{
"default_icon":{
"24":"images/panda-24.png",
"38":"images/panda-38.png"
},
"default_popup": "html/popup.html",
"default_title":"Hello Panda"
},
* page scripts 只能指定一个
"background": {
"page": "html/background.html",
"scripts": [
"scripts/background.js",
"scripts/devtools-page.js"
]
},