Examine source code of srch

{
  "manifest_version" : 2 ,
  "name" : "srch",
  "version" : "3.2.2",
  "description" : "Search selected text",
  "icons" : {
    "16" : "icons/srch-16.png",
    "32" : "icons/srch-32.png",
    "64" : "icons/srch-64.png",
    "128" : "icons/srch-128.png"
  },
  "permissions" : [
    "tabs" ,
    "activeTab" ,
    "storage" ,
    "contextMenus" 
  ],
  "background" : {
    "scripts" : [
      "background.js" 
    ]
  },
  "browser_action" : {
    "default_title" : "srch"
  },
  "options_ui" : {
    "page": "options.html" ,
    "open_in_tab": true
  },
  "commands" : {
    "invoke-chord": {
      "suggested_key": {
        "default": "Alt+C"
      },
      "description" : "Leader keybind for search"
    },
    "search-default": {
      "suggested_key": {
        "default": "Alt+X"
      },
      "description" : "Search with default engine"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b4279e91-8efb-42b5-b104-50f92224834b}"
    }
  }
}