Examine source code of Wood blocks

{
  "manifest_version": 2,
  "version": "2.0",
  "name": "Wood",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(112, 71, 49)",
      "toolbar_field": "rgb(179, 147, 127)",
      "toolbar_field_text": "rgb(43, 24, 19)",
      "tab_line": "rgb(222, 169, 133)",
      "popup": "rgb(222, 169, 133)",
      "popup_text": "rgb(84, 54, 50)",
      "tab_loading": "rgb(222, 169, 133)",
      "bookmark_text": "rgb(43, 24, 19)",
      "frame": "rgb(158, 109, 68)",
      "tab_background_text": "rgb(222, 169, 133)"
    }
  }
}