Examine source code of BaseHit Enhancement Suite for Firefox

{
  "name": "BaseHit Enhancement Suite for Firefox",
  "description": "Provides User Interface updates to basehit.com",
  "version": "2.3.5",
  "manifest_version": 2,
  "browser_specific_settings": {
    "gecko": {
      "id": "ryan.c.d.johnson@gmail.com",
      "strict_min_version": "60.0"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "permissions": [
    "storage",
    "tabs"
  ],
  "browser_action": {
    "default_icon": "/images/icon-96x96.png",
    "default_popup": "popup.html"
  },
  "icons": {
    "96": "/images/icon-96x96.png"
  },
  "web_accessible_resources": [
    "/css/compact-tables.css",
    "/css/overalls.css",
    "/css/restructure-draft-list.css",
    "/css/color-fatigue.css",
    "/css/color-ratings.css",
    "/css/unlettered.css",
    "/css/endurance-percentage.css",
    "/css/hide-endurance-status.css",
    "/css/enhanced-forum-links.css",
    "/css/indicate-sim-model.css"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://*.csfbl.com/*",
        "https://*.basehit.com/*"
      ],
      "js": [
        "ces.js"
      ],
      "css": [
        "ces.css"
      ]
    }
  ]
}