Examine source code of Green-ground

{
  "manifest_version": 2,
  "version": "2.0",
  "name": "Green-ground",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left top"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(32, 202, 60, 0.9)",
      "toolbar_field": "rgb(89, 109, 68)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(148, 56, 47)",
      "popup": "rgb(31, 34, 61)",
      "popup_text": "rgb(215, 226, 239)",
      "tab_loading": "rgb(148, 56, 47)",
      "bookmark_text": "rgb(255, 255, 255)",
      "frame": "rgb(115, 126, 205)",
      "tab_background_text": "rgb(215, 226, 239)"
    }
  }
}