Examine source code of Shaderballs

{
  "description": "View your fragment shaders textured onto spheres. Adds new UX to shadertoy.com so you can draft equirectangular/spherical shaders more easily.",
  "manifest_version": 2,
  "name": "Shaderballs",
  "version": "1.0",
  "icons": {
    "256": "icons/ShaderBalls.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.shadertoy.com/*"
      ],
      "js": [
        "borderify.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "node_modules/three/src/Three.js",
    "node_modules/camera-controls/dist/camera-controls.module.min.js",
    "orb.png"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{81443ef3-492c-452e-9e05-c6bca27179b9}"
    }
  }
}