Examine source code of Better Points

{
  "manifest_version": 2,
  "name": "Better Points",
  "version": "1.7.1",
  "description": "Integrate OBS into Twitch Channel Points.",
  "icons": {
    "128": "logo@128px.png"
  },
  "permissions": [
    "downloads",
    "https://api.better-points.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "homepage_url": "https://www.better-points.com",
  "content_scripts": [
    {
      "matches": [
        "*://www.twitch.tv/popout/*/reward-queue"
      ],
      "js": [
        "obs-websocket.min.js",
        "jquery-3.4.1.min.js",
        "tooltipster.bundle.min.js",
        "bundle.js"
      ],
      "css": [
        "tooltipster.bundle.min.css",
        "tooltipster-sideTip-borderless.min.css",
        "bundle.css",
        "global.css"
      ]
    }
  ],
  "web_accessible_resources": [
    "*.png",
    "*.svg"
  ]
}