Examine source code of KISer Web Clipper

{
  "manifest_version": 2,
  "name": "__MSG_name__",
  "description": "__MSG_description__",
  "default_locale": "en",
  "version": "2.0.8",
  "browser_action": {
    "default_icon": "icons/color-512.png"
  },
  "permissions": [
    "tabs",
    "activeTab",
    "storage",
    "<all_urls>",
    "contextMenus",
    "*://*/"
  ],
  "icons": {
    "16": "icons/color-16.png",
    "64": "icons/color-64.png",
    "128": "icons/color-128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://kislist.com/kiser/onboarding*"
      ],
      "js": [
        "js/onboarding.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "js/kiser-edit-initiator.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "commands": {
    "select-pic": {
      "suggested_key": {
        "default": "Ctrl+Shift+X",
        "mac": "Command+Shift+X"
      },
      "description": "__MSG_selectPic__"
    },
    "save-item": {
      "suggested_key": {
        "default": "Ctrl+Shift+S",
        "mac": "Command+Shift+S"
      },
      "description": "__MSG_saveItem__"
    },
    "take-screenshot": {
      "suggested_key": {
        "default": "Ctrl+Shift+Q",
        "mac": "Command+Shift+Q"
      },
      "description": "__MSG_takeScreenshot__"
    },
    "clear-data": {
      "suggested_key": {
        "default": "Ctrl+Shift+Z",
        "mac": "Command+Shift+Z"
      },
      "description": "__MSG_clearData__"
    }
  },
  "background": {
    "persistent": true,
    "scripts": [
      "background.js"
    ]
  },
  "web_accessible_resources": [
    "pick/*",
    "css/*",
    "js/*",
    "icons/*"
  ],
  "applications": {
    "gecko": {
      "id": "app.kislist@gmail.com",
      "strict_min_version": "58.0"
    }
  }
}