Examine source code of JiraSQL

{
  "name": "__MSG_extName__",
  "version": "2.6",
  "description": "__MSG_extDesc__",
  "author": "FRWKS",
  "default_locale": "en",
  "browser_specific_settings": {
    "gecko": {
      "id": "JiraSQL@JiraSQL",
      "strict_min_version": "78.0"
    }
  },
  "icons": {
    "800": "skin/500l.png"
  },
  "background": {
    "page": "background.html"
  },
  "commands": {
    "JiraSQL-open": {
      "description": "__MSG_commandDescription__",
      "suggested_key": {
        "default": "Alt+Shift+J",
        "mac": "Alt+Shift+J"
      }
    }
  },
  "action": {
    "default_title": "__MSG_commandDescription__",
    "default_icon": {
      "16": "skin/500l.png"
    },
    "theme_icons": [
      {
        "dark": "skin/500d.png",
        "light": "skin/500l.png",
        "size": 500
      }
    ]
  },
  "host_permissions": [
    "https://*/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "content/search.js"
      ],
      "run_at": "document_end",
      "all_frames": false
    }
  ],
  "permissions": [
    "storage",
    "scripting",
    "downloads",
    "tabs",
    "contextMenus",
    "notifications",
    "nativeMessaging"
  ],
  "options_ui": {
    "page": "prefs/prefs.html",
    "open_in_tab": true
  },
  "manifest_version": 3
}