Examine source code of Summer_leaves_pink

{
  "manifest_version": 2,
  "version": "2.0",
  "name": "Summer leaves",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left bottom"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(247, 193, 216, 0.7)",
      "toolbar_field": "rgba(1, 56, 56, 0)",
      "toolbar_field_text": "rgb(0, 15, 1)",
      "tab_line": "rgb(125, 149, 237)",
      "popup": "rgb(125, 149, 237)",
      "popup_text": "rgb(205, 40, 117)",
      "tab_loading": "rgb(125, 149, 237)",
      "bookmark_text": "rgb(0, 15, 1)",
      "frame": "rgb(45, 70, 44)",
      "tab_background_text": "rgb(228, 137, 0)"
    }
  }
}