Examine source code of Pastel fog

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Pastel clouds",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(221, 221, 221, 0.25)",
      "toolbar_text": "rgb(99, 0, 87)",
      "frame": "rgb(255, 255, 255)",
      "tab_background_text": "rgb(0, 0, 0)",
      "toolbar_field": "rgb(255, 238, 246)",
      "toolbar_field_text": "rgb(74, 74, 74)",
      "tab_line": "rgb(255, 125, 173)",
      "popup": "rgb(255, 240, 226)",
      "popup_text": "rgb(0, 88, 182)",
      "ntp_background": "rgb(212, 239, 255)",
      "ntp_text": "rgb(174, 43, 0)",
      "popup_border": "rgb(255, 255, 255)",
      "tab_selected": "rgba(255, 255, 255, 0.75)",
      "tab_loading": "rgb(255, 125, 173)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{66699c60-64ff-408b-8d02-70c5334b808e}"
    }
  }
}