Examine source code of debian linux dark

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "debian linux dark",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(74, 0, 3)",
      "toolbar_text": "rgb(251, 202, 202)",
      "frame": "rgb(21, 0, 1)",
      "tab_background_text": "rgb(221, 221, 221)",
      "toolbar_field": "rgb(0, 0, 0)",
      "toolbar_field_text": "rgb(199, 154, 154)",
      "tab_line": "rgb(255, 100, 104)",
      "popup": "rgb(81, 0, 2)",
      "popup_text": "rgb(255, 241, 241)",
      "button_background_hover": "rgb(154, 0, 62)",
      "icons": "rgb(255, 0, 0)",
      "ntp_background": "rgb(21, 0, 1)",
      "ntp_text": "rgb(255, 255, 255)",
      "tab_loading": "rgb(255, 0, 69)"
    }
  }
}