Examine source code of ywc

{
  "name": "ywc",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "image.jpg"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3e62fa3c-4f17-4c59-9f82-e6f0a1fe57d9}"
    }
  }
}