Examine source code of Channel Blocker

{
  "manifest_version": 2,
  "name": "Channel Blocker",
  "version": "2.2.4",
  "description": "Allows you to block YouTube™ videos and comments by blacklisting users and/or by using regular expressions.",
  "icons": {
    "16": "/images/CB_icon_16.png",
    "32": "/images/CB_icon_32.png",
    "48": "/images/CB_icon_48.png",
    "96": "/images/CB_icon_96.png",
    "128": "/images/CB_icon_128.png"
  },
  "permissions": [
    "storage",
    "unlimitedStorage",
    "tabs",
    "contextMenus",
    "*://www.youtube.com/*"
  ],
  "browser_action": {
    "default_title": "Channel Blocker (Configuration)",
    "default_icon": {
      "16": "/images/CB_icon_16.png",
      "32": "/images/CB_icon_32.png",
      "48": "/images/CB_icon_48.png",
      "96": "/images/CB_icon_96.png",
      "128": "/images/CB_icon_128.png"
    }
  },
  "options_ui": {
    "page": "/ui/config/html/config.html",
    "open_in_tab": true
  },
  "background": {
    "scripts": [
      "shared/browser-polyfill.min.js",
      "shared/shared.js",
      "background/HashSet.js",
      "background/browser_action.js",
      "background/url_update.js",
      "background/storage/content_ui.js",
      "background/storage/settings_ui.js",
      "background/storage/FilterStorageManager.js",
      "background/storage/filter.js",
      "background/savefile_export.js",
      "background/bug_report.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.youtube.com/*"
      ],
      "js": [
        "shared/browser-polyfill.min.js",
        "shared/jquery-3.5.1.min.js",
        "shared/shared.js",
        "content/libs/mutation-summary.js",
        "content/libs/is_blocked_lib.js",
        "content/libs/block_button_lib.js",
        "content/libs/display_lib.js",
        "content/config.js",
        "content/observer_components/shared/shared.js",
        "content/observer_components/home/home_video.js",
        "content/observer_components/home/post.js",
        "content/observer_components/home/video_in_container.js",
        "content/observer_components/home/video_in_section.js",
        "content/observer_components/home/home_movie.js",
        "content/observer_components/trending/expanded_video.js",
        "content/observer_components/trending/horizontal_video.js",
        "content/observer_components/trending/video_container.js",
        "content/observer_components/search/search_video.js",
        "content/observer_components/search/vertical_video.js",
        "content/observer_components/search/playlist.js",
        "content/observer_components/search/channel.js",
        "content/observer_components/search/search_movie.js",
        "content/observer_components/video/comment.js",
        "content/observer_components/video/main_video.js",
        "content/observer_components/video/next.js",
        "content/observer_components/video/videowall_video.js",
        "content/observer_components/video/video_movie.js",
        "content/Observer.js",
        "content/observers_creator.js",
        "content/controller.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{8263766c-d28e-4460-a2a7-7e7ada52a2d3}"
    }
  }
}