Examine source code of Discord&Dice Beyond

{
  "manifest_version": 2,
  "name": "Discord&Dice Beyond",
  "version": "1.15",
  "description": "Roll dice into your Discord from D&DBeyond character sheet. Lance les dès dans ton Discord depuis ta fiche de personnage D&DBeyond.",
  "icons": {
    "16": "icons/d20-16.png",
    "32": "icons/d20-32.png",
    "48": "icons/d20-48.png",
    "96": "icons/d20-96.png",
    "128": "icons/d20-128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.dndbeyond.com/profile/*/characters/*"
      ],
      "js": [
        "lib/browserManager.js",
        "lib/dice.js",
        "discord-n-dice-beyond.js"
      ]
    }
  ],
  "permissions": [
    "storage"
  ],
  "browser_action": {
    "default_icon": {
      "16": "icons/d20-16.png",
      "32": "icons/d20-32.png",
      "48": "icons/d20-48.png",
      "96": "icons/d20-96.png",
      "128": "icons/d20-128.png"
    },
    "default_title": "Discord&Dice Beyond",
    "default_popup": "popup/popup.html"
  },
  "web_accessible_resources": [
    "icons/d20-16.png",
    "icons/d20-32.png",
    "icons/d20-48.png",
    "icons/d20-96.png",
    "icons/d12-16.png",
    "icons/d12-32.png",
    "icons/d12-48.png",
    "icons/d12-96.png",
    "icons/d10-16.png",
    "icons/d10-32.png",
    "icons/d10-48.png",
    "icons/d10-96.png",
    "icons/d100-16.png",
    "icons/d100-32.png",
    "icons/d100-48.png",
    "icons/d100-96.png",
    "icons/d8-16.png",
    "icons/d8-32.png",
    "icons/d8-48.png",
    "icons/d8-96.png",
    "icons/d6-16.png",
    "icons/d6-32.png",
    "icons/d6-48.png",
    "icons/d6-96.png",
    "icons/d4-16.png",
    "icons/d4-32.png",
    "icons/d4-48.png",
    "icons/d4-96.png",
    "popup/header.png"
  ],
  "applications": {
    "gecko": {
      "id": "discord-n-dice-beyond@example.com"
    }
  }
}