Examine source code of EPIC Publish

{
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  "name": "EPIC Publish",
  "short_name": "EPIC Publish",
  "version": "1.0.4",
  "description": "Give successful academic submissions the celebration they deserve: fireworks, confetti, Black Forest scenery, and motivational messages.",
  "author": "Martin Daumiller",
  "homepage_url": "https://martindaumiller.de/publish",
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    "activeTab",
    "scripting"
  ],
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    "*://submit.plos.org/*",
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    "*://researchservices.nsf.gov/*",
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    "*://foerderportal.bund.de/*",
    "*://*.pt-outline.de/*",
    "*://portal.volkswagenstiftung.de/*",
    "*://*.submittable.com/*",
    "*://osf.io/*",
    "*://zenodo.org/*"
  ],
  "optional_host_permissions": [
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  ],
  "background": {
    "scripts": [
      "shared/defaults.js",
      "background.js"
    ]
  },
  "action": {
    "default_title": "EPIC Publish",
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png"
    }
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png"
  },
  "content_scripts": [
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      "matches": [
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        "*://submit.springernature.com/*",
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        "*://authors.wiley.com/*",
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        "*://ec.europa.eu/info/funding-tenders/opportunities/portal/*",
        "*://funding-service.ukri.org/*",
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        "*://*.research.gov/*",
        "*://researchservices.nsf.gov/*",
        "*://commons.era.nih.gov/*",
        "*://public.era.nih.gov/*",
        "*://*.era.nih.gov/*",
        "*://*.grants.gov/*",
        "*://*.mysnf.ch/*",
        "*://portal.snf.ch/*",
        "*://elane.fwf.ac.at/*",
        "*://foerderportal.bund.de/*",
        "*://*.pt-outline.de/*",
        "*://portal.volkswagenstiftung.de/*",
        "*://*.submittable.com/*",
        "*://osf.io/*",
        "*://zenodo.org/*"
      ],
      "js": [
        "shared/defaults.js",
        "content/content.js"
      ],
      "css": [
        "content/content.css"
      ],
      "run_at": "document_idle",
      "all_frames": false
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "epic-publish@martindaumiller.de",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
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