Examine source code of GraphMarks — Bookmarks as a graph

{
  "manifest_version": 3,
  "name": "__MSG_extName__",
  "version": "0.22.1",
  "icons": {
    "16": "icons/mark-16.png",
    "32": "icons/mark-32.png",
    "48": "icons/mark-48.png",
    "128": "icons/mark-128.png"
  },
  "description": "__MSG_extDescription__",
  "action": {
    "default_title": "__MSG_extName__",
    "default_icon": {
      "16": "icons/mark-16.png",
      "32": "icons/mark-32.png",
      "48": "icons/mark-48.png",
      "128": "icons/mark-128.png"
    }
  },
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  },
  "background": {
    "scripts": [
      "dist/background.js"
    ]
  },
  "omnibox": {
    "keyword": "gm"
  },
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+S",
        "mac": "Command+Shift+S"
      }
    },
    "open-graph": {
      "suggested_key": {
        "default": "Ctrl+Shift+G",
        "mac": "Command+Shift+G"
      },
      "description": "__MSG_menuActionOpenGraph__"
    },
    "save-page": {
      "suggested_key": {
        "default": "Ctrl+Shift+Y",
        "mac": "Command+Shift+Y"
      },
      "description": "__MSG_menuActionSavePage__"
    }
  },
  "permissions": [
    "bookmarks",
    "tabs",
    "storage",
    "history",
    "contextMenus",
    "identity"
  ],
  "host_permissions": [
    "https://auth.zetesis.xyz/*",
    "https://api.graphacker.zetesis.xyz/*"
  ],
  "optional_permissions": [
    "tabGroups"
  ],
  "default_locale": "es",
  "browser_specific_settings": {
    "gecko": {
      "id": "graphmarks-newtab@zetesis.xyz",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": [
          "authenticationInfo",
          "personallyIdentifyingInfo"
        ]
      }
    }
  }
}