Examine source code of RedClay

{
  "name": "RedClay",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "RedClay.png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(18, 89, 28, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7c38b5de-9695-4dbf-8e1b-f9d7977d7c08}"
    }
  }
}