Examine source code of Recipe Checkbox

{
  "name": "Recipe Checkbox",
  "version": "24.10.31.1144",
  "description": "Adds checkboxes to selected websites with recipes & more",
  "homepage_url": "https://github.com/GREEB/recipe-checkbox",
  "manifest_version": 2,
  "browser_specific_settings": {
    "gecko": {
      "id": "recipie-checkbox@greeb.github.com",
      "strict_min_version": "100.0"
    },
    "gecko_android": {
      "strict_min_version": "113.0"
    }
  },
  "icons": {
    "128": "icon.538b4038.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.eat-this.org/*"
      ],
      "css": [
        "global.c9146b59.css"
      ],
      "run_at": "document_end",
      "js": [
        "script.21704a84.js"
      ]
    },
    {
      "matches": [
        "*://*.allrecipes.com/*"
      ],
      "css": [
        "global.c9146b59.css",
        "style.1c30fa9a.css"
      ],
      "run_at": "document_end",
      "js": [
        "script.21704a84.js"
      ]
    },
    {
      "matches": [
        "*://*.food.com/*"
      ],
      "css": [
        "global.c9146b59.css",
        "style.7d856a7a.css"
      ],
      "run_at": "document_end",
      "js": [
        "script.21704a84.js"
      ]
    },
    {
      "matches": [
        "*://*.budgetbytes.com/*"
      ],
      "css": [
        "global.c9146b59.css",
        "style.3b0944e3.css"
      ],
      "run_at": "document_end",
      "js": [
        "script.21704a84.js"
      ]
    },
    {
      "matches": [
        "*://*.pinchofyum.com/*"
      ],
      "css": [
        "global.c9146b59.css"
      ],
      "run_at": "document_end",
      "js": [
        "script.21704a84.js"
      ]
    }
  ]
}