Examine source code of Clear Grey Green

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Clear Grey Green",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(67, 130, 114)",
      "toolbar_text": "rgb(241, 241, 241)",
      "frame": "rgb(56, 56, 55)",
      "tab_background_text": "rgb(252, 252, 252)",
      "toolbar_field": "rgb(59, 59, 59)",
      "toolbar_field_text": "rgb(255, 155, 0)",
      "tab_line": "rgb(255, 153, 0)",
      "popup": "rgb(56, 56, 55)",
      "popup_text": "rgb(81, 158, 138)",
      "tab_loading": "rgb(255, 153, 0)"
    }
  }
}