Examine source code of Tesla E

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Tesla",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg",
        "images/1.jpg",
        "images/2.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left top",
        "right top",
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat",
        "repeat",
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(30, 42, 34)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(142, 179, 201)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(28, 28, 27)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(208, 140, 24)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(98, 102, 183)",
      "sidebar_border": "rgb(18, 19, 18)",
      "sidebar_text": "rgb(255, 255, 255)",
      "sidebar": "rgb(42, 3, 14)",
      "tab_loading": "rgb(208, 140, 24)"
    }
  }
}