Examine source code of Muji Overlay 07

{
  "name": "Muji Overlay 07",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "m-ov07.jpg"
    },
    "colors": {
      "frame": "rgba(241, 236, 243, 1)",
      "tab_background_text": "rgba(38, 36, 34, 1)",
      "toolbar": "rgba(244, 239, 246, 0.8)",
      "toolbar_field": "rgba(240, 240, 245, 1)",
      "toolbar_field_text": "rgba(38, 36, 34, 1)",
      "tab_line": "rgba(241, 236, 243, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3176ccb7-305d-4a9f-a2bf-ae8972c939dd}"
    }
  }
}