Examine source code of Christmas night animated

{
  "name": "Christmasnight2",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "a9e3e902562877add6cd109ac0c72765-ezgif.com-crop(4).gif"
    },
    "colors": {
      "frame": "rgba(69, 16, 0, 1)",
      "tab_background_text": "rgba(199, 165, 153, 1)",
      "toolbar": "rgba(255, 255, 255, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(133, 41, 2, 0.43)",
      "toolbar_field_text": "rgba(34, 255, 0, 1)",
      "tab_line": "rgba(255, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b0c23cbc-c00d-43e4-b05d-c06be0342f5c}"
    }
  }
}