Examine source code of Walters2

{
  "name": "Walters2",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "Transparent Logo Pink1.png"
    },
    "colors": {
      "frame": "rgba(34, 81, 101, 1)",
      "tab_background_text": "rgba(254, 28, 106, 1)",
      "toolbar": "rgba(34, 81, 101, 1)",
      "bookmark_text": "rgba(254, 28, 106, 1)",
      "toolbar_field_text": "rgba(254, 28, 106, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{12262bf5-16c8-4dc0-9594-37da75f947e4}"
    }
  }
}