Examine source code of Naro Blue

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Naro-Theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(255, 255, 255)",
      "toolbar_text": "rgb(17, 117, 223)",
      "frame": "rgb(17, 117, 223)",
      "tab_background_text": "rgb(0, 67, 138)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(17, 117, 223)",
      "tab_line": "rgb(17, 117, 223)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(17, 117, 223)",
      "popup_border": "rgb(0, 115, 255)",
      "tab_text": "rgb(0, 115, 255)",
      "tab_loading": "rgb(17, 117, 223)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{fa499f19-4bc0-437d-9c00-351f28b51af9}"
    }
  }
}