Examine source code of MM new layout & theme

{
  "name": "MM new layout & theme",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "MM new layout & theme.jpg"
    },
    "colors": {
      "frame": "rgba(219, 45, 40, 1)",
      "tab_background_text": "rgba(222, 24, 24, 1)",
      "toolbar": "rgba(128, 128, 128, 1)",
      "bookmark_text": "rgba(79, 78, 78, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{cb26289a-0e6d-4c01-94ef-246a0d980f65}"
    }
  }
}