Examine source code of Muji 03

{
  "name": "Muji 03",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "hd3.jpg"
    },
    "colors": {
      "frame": "rgba(236, 235, 230, 1)",
      "tab_background_text": "rgba(32, 33, 36, 1)",
      "toolbar_field": "rgba(250, 250, 245, 1)",
      "toolbar_field_text": "rgba(32, 33, 36, 1)",
      "tab_line": "rgba(236, 235, 230, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{307a455b-af2b-41f0-8796-9c43b99d3fb5}"
    }
  }
}