Examine source code of Open Earth Engine extension

{
  "name": "Open Earth Engine extension",
  "description": "An unofficel extension to enhance Google Earth Engine, and Open Earth Engine experience.",
  "version": "1.5.1",
  "manifest_version": 3,
  "browser_specific_settings": {
    "gecko": {
      "id": "OEEex@open-geocomputing.org",
      "strict_min_version": "109.0"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "declarative_net_request": {
    "rule_resources": [
      {
        "id": "ruleset",
        "enabled": true,
        "path": "rules.json"
      }
    ]
  },
  "web_accessible_resources": [
    {
      "resources": [
        "isShareable.js",
        "insertInCE.js",
        "2022-04-20.json",
        "planetLab.js",
        "EEDarkMode.js",
        "uploadWithManifest.js",
        "hackEE.js",
        "addCommandS.js",
        "runAllTasks.js",
        "addPlotly.js",
        "3rd_party/shpwrite.js",
        "addCopyJSON.js",
        "editorSettings.js",
        "surveyMessage.js",
        "3rd_party/lottie-player.js",
        "images/logo.json",
        "openScriptNewTab.js",
        "addTerminal.js",
        "externalConenctingfix.js",
        "3rd_party/trustedtypes.api_only.build.js"
      ],
      "matches": [
        "https://code.earthengine.google.com/*"
      ]
    },
    {
      "resources": [
        "addPlotly.js"
      ],
      "matches": [
        "https://*.earthengine.app/*"
      ]
    },
    {
      "resources": [
        "options.html",
        "planet.html"
      ],
      "matches": [
        "https://www.open-geocomputing.org/*"
      ]
    }
  ],
  "options_ui": {
    "page": "options.html",
    "browser_style": true
  },
  "host_permissions": [
    "https://code.earthengine.google.com/repo/file/load?*",
    "https://api.planet.com/*",
    "https://link.planet.com/*",
    "https://tiles.planet.com/*"
  ],
  "permissions": [
    "activeTab",
    "storage",
    "webRequest",
    "webRequestBlocking"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://code.earthengine.google.com/*"
      ],
      "js": [
        "injectionScript.js"
      ],
      "css": [
        "EEDarkMode.css",
        "OEEex.css",
        "planetLab.css"
      ]
    },
    {
      "matches": [
        "https://*.earthengine.app/*"
      ],
      "js": [
        "injectionScriptApp.js"
      ],
      "css": [
        "EEDarkMode.css",
        "OEEex.css"
      ]
    }
  ],
  "action": {
    "default_icon": {
      "16": "/images/logo_white_OEEex_open_16.png",
      "32": "/images/logo_white_OEEex_open_32.png",
      "48": "/images/logo_white_OEEex_open_48.png",
      "128": "/images/logo_white_OEEex_open_128.png"
    }
  },
  "icons": {
    "16": "/images/logo_white_OEEex_open_16.png",
    "32": "/images/logo_white_OEEex_open_32.png",
    "48": "/images/logo_white_OEEex_open_48.png",
    "128": "/images/logo_white_OEEex_open_128.png"
  }
}