Examine source code of Classic textured

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Classic textured",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(48, 31, 25)",
      "toolbar_text": "rgb(165, 165, 165)",
      "frame": "rgb(37, 20, 13)",
      "tab_background_text": "rgb(165, 165, 165)",
      "toolbar_field": "rgb(38, 31, 27)",
      "toolbar_field_text": "rgb(165, 165, 165)",
      "tab_line": "rgb(145, 104, 95)",
      "popup": "rgb(67, 49, 41)",
      "popup_text": "rgb(165, 165, 165)",
      "icons": "rgb(165, 165, 165)",
      "tab_selected": "rgb(48, 31, 25)",
      "tab_text": "rgb(165, 165, 165)",
      "toolbar_bottom_separator": "rgb(0, 0, 0)",
      "toolbar_top_separator": "rgb(0, 0, 0)",
      "tab_loading": "rgb(145, 104, 95)"
    }
  }
}