Examine source code of Browser Injector

{
  "name": "__MSG_extensionName__",
  "version": "1.9.8",
  "manifest_version": 2,
  "description": "__MSG_extensionDescription__",
  "author": "Paul-Émile Arnaly",
  "homepage_url": "https://github.com/pearnaly/browser-injetor",
  "icons": {
    "16": "/icons/icon.svg",
    "24": "/icons/icon.svg",
    "32": "/icons/icon.svg",
    "48": "/icons/icon.svg",
    "96": "/icons/icon.svg",
    "128": "/icons/icon.svg"
  },
  "options_ui": {
    "page": "/index.html#/options",
    "browser_style": true
  },
  "background": {
    "page": "/index.html#/background",
    "persistent": true
  },
  "browser_action": {
    "default_title": "__MSG_extensionName__",
    "default_popup": "/index.html#/popup",
    "browser_style": true,
    "default_icon": "/icons/icon.svg"
  },
  "sidebar_action": {
    "default_title": "__MSG_extensionName__",
    "default_panel": "/index.html#/panel",
    "browser_style": true,
    "open_at_install": false,
    "default_icon": "/icons/icon.svg"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "injector.js"
      ]
    }
  ],
  "commands": {
    "toggle_active": {
      "suggested_key": {
        "default": "Alt+A"
      },
      "description": "__MSG_commandToggleActive__"
    },
    "toggle_tab_active": {
      "suggested_key": {
        "default": "Alt+T"
      },
      "description": "__MSG_commandToggleTabActive__"
    },
    "open_rules": {
      "suggested_key": {
        "default": "Alt+R"
      },
      "description": "__MSG_commandOpenRules__"
    },
    "_execute_sidebar_action": {
      "suggested_key": {
        "default": "Ctrl+Alt+P"
      },
      "description": "__MSG_commandToggleSidebarPanel__"
    },
    "open_detached_panel": {
      "suggested_key": {
        "default": "Alt+P"
      },
      "description": "__MSG_commandOpenDetachedPanel__"
    },
    "new_quick_rule_picker": {
      "suggested_key": {
        "default": "Alt+N"
      },
      "description": "__MSG_commandNewQuickRulePicker__"
    }
  },
  "permissions": [
    "contextMenus",
    "storage",
    "tabs",
    "*://*/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "browser-injector@pearnaly_at_gmail.com",
      "strict_min_version": "68.0"
    }
  },
  "default_locale": "en"
}