Examine source code of Orange, Yellow Feathers

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Orange, Yellow Feathers",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(217, 139, 69, 0.78)",
      "toolbar_text": "rgb(14, 121, 148)",
      "frame": "rgb(142, 179, 201)",
      "tab_background_text": "rgb(14, 121, 148)",
      "toolbar_field": "rgb(247, 227, 208)",
      "toolbar_field_text": "rgb(14, 121, 148)",
      "tab_line": "rgb(187, 232, 249)",
      "popup": "rgb(245, 194, 148)",
      "popup_text": "rgb(14, 121, 148)",
      "tab_loading": "rgb(187, 232, 249)"
    }
  }
}