Examine source code of Remark

{
  "manifest_version": 2,
  "name": "Remark",
  "short_name": "Remark",
  "version": "1.0.0",
  "description": "Uncensored Comments, anywhere.",
  "author": "Simplify Software",
  "homepage_url": "https://remark.surf/",
  "icons": {
    "64": "assets/icon/64.png",
    "128": "assets/icon/128.png",
    "256": "assets/icon/256.png"
  },
  "web_accessible_resources": [
    "assets/*.png",
    "assets/indicator/*.png",
    "assets/icon/*.png",
    "css/*.css"
  ],
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "entry/injected.js"
      ],
      "run_at": "document_end"
    }
  ],
  "background": {
    "scripts": [
      "entry/background.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_title": "Remark"
  },
  "commands": {
    "toggle_button": {
      "suggested_key": {
        "default": "Ctrl+Alt+Y"
      },
      "description": "Toggle the Remark Button"
    },
    "toggle_sidebar": {
      "suggested_key": {
        "default": "Ctrl+Alt+S"
      },
      "description": "Toggle the Remark Sidebar"
    }
  },
  "permissions": [
    "http://*/*",
    "https://*/*",
    "tabs",
    "storage",
    "unlimitedStorage",
    "notifications",
    "idle",
    "webRequest",
    "webRequestBlocking",
    "clipboardWrite"
  ],
  "optional_permissions": [],
  "applications": {}
}