Examine source code of Giyuu background

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Giyuu",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(71, 73, 115)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(8, 11, 33)",
      "tab_background_text": "rgb(208, 223, 241)",
      "toolbar_field": "rgb(54, 58, 89)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(24, 152, 176)",
      "popup": "rgb(57, 59, 100)",
      "popup_text": "rgb(209, 224, 241)",
      "tab_loading": "rgb(24, 152, 176)"
    }
  }
}