Examine source code of ReddPost - Reddit post & content manager

{
  "manifest_version": 3,
  "name": "ReddPost - Reddit post and content manager",
  "description": "Plan, organize, and publish subreddit content with an assisted posting workflow.",
  "version": "1.1.0",
  "permissions": [
    "storage",
    "tabs",
    "scripting",
    "identity"
  ],
  "host_permissions": [
    "*://*.reddit.com/*",
    "*://reddit.com/*",
    "*://*.redgifs.com/*",
    "*://redgifs.com/*",
    "https://jmgryqnxecgkkocoqjeb.supabase.co/*"
  ],
  "icons": {
    "16": "ico/16.png",
    "32": "ico/32.png",
    "48": "ico/48.png",
    "128": "ico/128.png"
  },
  "action": {
    "default_title": "Reddit post assistant & content manager",
    "default_icon": {
      "16": "ico/16.png",
      "32": "ico/32.png",
      "48": "ico/48.png",
      "128": "ico/128.png"
    }
  },
  "background": {
    "scripts": [
      "src/shared/utils.js",
      "src/shared/db.js",
      "src/shared/engine.js",
      "src/shared/subredditMetadata.js",
      "src/shared/watermark.js",
      "src/shared/image-transform.js",
      "src/shared/supabaseClient.js",
      "src/shared/auth.js",
      "src/shared/accountStatus.js",
      "src/background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "reddpost-assistant@local",
      "data_collection_permissions": {
        "required": [
          "authenticationInfo",
          "personallyIdentifyingInfo",
          "websiteActivity",
          "websiteContent"
        ]
      },
      "strict_min_version": "140.0"
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "options_ui": {
    "page": "src/options/options.html",
    "open_in_tab": true
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.redgifs.com/*",
        "*://redgifs.com/*"
      ],
      "js": [
        "src/content/redgifs.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "*://*.reddit.com/*",
        "*://reddit.com/*"
      ],
      "js": [
        "src/content/reddit-common.js",
        "src/content/reddit-bootstrap.js",
        "src/content/reddit-submit.js"
      ],
      "run_at": "document_start"
    }
  ]
}