Examine source code of Ripple Tool

{
  "name": "Ripple Tool",
  "version": "0.8.3.1",
  "manifest_version": 3,
  "short_name": "Ripple Tools",
  "description": "Ripple Tools provide mental health sign posting, in browser",
  "action": {
    "default_title": "Ripple Tool - Help is available right now, for you"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{5a214bec-53bb-4621-9868-0b0c4e180de5}"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "all_frames": true,
      "js": [
        "popup.js"
      ],
      "include_globs": [
        "*://*.google.*/search*",
        "*://duckduckgo.*",
        "*://*.yahoo.*/search*",
        "*://*.bing.*/search*",
        "*://*.ask.*/web*",
        "*://*.ecosia.*/search*",
        "*://*.youtube.*"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "*://*/*"
      ],
      "all_frames": true,
      "include_globs": [
        "*://*.google.*/search?*"
      ],
      "css": [
        "css/style.css"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "*://*/*"
      ],
      "all_frames": true,
      "include_globs": [
        "*://duckduckgo.*"
      ],
      "css": [
        "css/style_ddg.css"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "*://*/*"
      ],
      "all_frames": true,
      "include_globs": [
        "*://*.yahoo.*/search*"
      ],
      "css": [
        "css/style_yahoo.css"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "*://*/*"
      ],
      "all_frames": true,
      "include_globs": [
        "*://*.bing.*/search?*"
      ],
      "css": [
        "css/style.css"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "*://*/*"
      ],
      "all_frames": true,
      "include_globs": [
        "*://*.ask.*/web?*"
      ],
      "css": [
        "css/style_ask.css"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "*://*/*"
      ],
      "all_frames": true,
      "include_globs": [
        "*://*.ecosia.*/search?*"
      ],
      "css": [
        "css/style_ecosia.css"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "*://*/*"
      ],
      "all_frames": true,
      "include_globs": [
        "*://*.youtube.*"
      ],
      "css": [
        "css/style_youtube.css"
      ],
      "run_at": "document_start"
    }
  ],
  "icons": {
    "16": "image_assets/icon/16x16_Ripple_Icon.png",
    "48": "image_assets/icon/48x48_Ripple_Icon.png",
    "128": "image_assets/icon/128x128_Ripple_Icon.png"
  },
  "permissions": [
    "storage"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "js/*",
        "html/*"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ]
}