Examine source code of Binge Webclipper

{
  "browser_specific_settings": {
    "gecko": {
      "id": "hi@binge.org"
    }
  },
  "icons": {
    "16": "icon16.plasmo.6c567d50.png",
    "32": "icon32.plasmo.76b92899.png",
    "48": "icon48.plasmo.aced7582.png",
    "64": "icon64.plasmo.8bb5e6e0.png",
    "128": "icon128.plasmo.3c1ed2d2.png"
  },
  "manifest_version": 3,
  "action": {
    "default_icon": {
      "16": "icon16.plasmo.6c567d50.png",
      "32": "icon32.plasmo.76b92899.png",
      "48": "icon48.plasmo.aced7582.png",
      "64": "icon64.plasmo.8bb5e6e0.png",
      "128": "icon128.plasmo.3c1ed2d2.png"
    },
    "default_popup": "popup.html"
  },
  "version": "0.0.2",
  "author": "Binge <hi@binge.org>",
  "name": "Binge webclipper",
  "description": "webclipper for binge",
  "host_permissions": [
    "https://*/*"
  ]
}