Examine source code of sparkle head banner

{
  "name": "sparkle ",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "ed0fce15702a1545150b85891c9cdc58.jpg"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e07032ec-44ba-4022-8226-c5f961bee42b}"
    }
  }
}