Examine source code of Logseq Quick Capture v2

{
  "name": "Logseq Quick Capture",
  "version": "0.2.9",
  "description": "Quick capture from Firefox to Logseq",
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "manifest_version": 2,
  "author": "benjypng",
  "options_ui": {
    "page": "src/options.html"
  },
  "permissions": [
    "activeTab",
    "storage",
    "tabs"
  ],
  "browser_action": {
    "default_icon": "icons/icon32.png",
    "default_title": "logseq-quick-capture",
    "default_popup": "src/index.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3ce1be73-9180-4203-84c4-4b4656795039}"
    }
  }
}