Examine source code of IT-Expert

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "IT-Expert",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left center"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(59, 73, 99)",
      "toolbar_text": "rgb(162, 219, 252)",
      "frame": "rgb(20, 34, 73)",
      "tab_background_text": "rgb(156, 214, 255)",
      "toolbar_field": "rgb(24, 37, 55)",
      "toolbar_field_text": "rgb(0, 185, 248)",
      "tab_line": "rgb(60, 130, 255)",
      "popup": "rgb(59, 73, 99)",
      "popup_text": "rgb(162, 219, 252)",
      "tab_loading": "rgb(60, 130, 255)"
    }
  }
}