Examine source code of Yellow Air

{
  "manifest_version": 2,
  "version": "2.0",
  "name": "Yellow Air",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(47, 23, 0)",
      "toolbar_field": "rgba(47, 23, 0, 0.58)",
      "toolbar_field_text": "rgb(255, 180, 60)",
      "tab_line": "rgb(206, 107, 9)",
      "popup": "rgb(255, 180, 60)",
      "popup_text": "rgb(47, 23, 0)",
      "tab_loading": "rgb(206, 107, 9)",
      "bookmark_text": "rgb(255, 180, 60)",
      "frame": "rgb(255, 180, 60)",
      "tab_background_text": "rgb(47, 23, 0)"
    }
  }
}