Examine source code of Gray & Blue

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Elegant Blue",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right bottom"
      ],
      "additional_backgrounds_tiling": [
        "repeat-x"
      ]
    },
    "colors": {
      "toolbar": "rgb(233, 237, 240)",
      "toolbar_text": "rgb(26, 29, 32)",
      "frame": "rgb(214, 215, 220)",
      "tab_background_text": "rgb(43, 45, 47)",
      "toolbar_field": "rgb(245, 247, 250)",
      "toolbar_field_text": "rgb(6, 78, 160)",
      "tab_line": "rgb(6, 78, 160)",
      "popup": "rgb(233, 237, 240)",
      "popup_text": "rgb(26, 29, 32)",
      "tab_loading": "rgb(6, 78, 160)"
    }
  }
}