BigBrainMath

Flash Math Built Into Your Browser!
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manifest.json
{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "BigBrainMath",
  "description": "Flash Math Built Into Your Browser!",
  "version": "1.6",
  "manifest_version": 3,
  "icons": {
    "16": "./images/supersmallmath16.png",
    "32": "./images/supersmallmath32.png",
    "48": "./images/supersmallmath48.png",
    "128": "./images/supersmallmath128.png"
  },
  "background": {
    "service_worker": "./background.js"
  },
  "action": {
    "default_title": "SuperMath Practice Anzan",
    "default_popup": "./popup.html",
    "default_icon": {
      "16": "./images/supersmallmath16.png",
      "32": "./images/supersmallmath32.png",
      "48": "./images/supersmallmath48.png",
      "128": "./images/supersmallmath128.png"
    }
  },
  "options_page": "./options.html",
  "permissions": [
    "storage"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "./data/webfonts.json"
      ],
      "matches": [
        "<all_urls>"
      ],
      "extension_ids": []
    }
  ]
}