Examine source code of Elegant Black Hitman

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Elegant Black Hitman",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left center"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(51, 61, 66)",
      "toolbar_text": "rgb(243, 244, 247)",
      "frame": "rgb(22, 9, 22)",
      "tab_background_text": "rgb(238, 238, 238)",
      "toolbar_field": "rgba(0, 0, 0, 0.22)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(18, 225, 34)",
      "popup": "rgb(27, 40, 45)",
      "popup_text": "rgb(238, 238, 242)",
      "button_background_active": "rgb(73, 145, 29)",
      "button_background_hover": "rgb(83, 113, 218)",
      "icons_attention": "rgb(193, 225, 40)",
      "icons": "rgb(238, 238, 242)",
      "ntp_background": "rgb(15, 15, 28)",
      "popup_border": "rgb(208, 208, 48)",
      "popup_highlight_text": "rgb(6, 6, 6)",
      "popup_highlight": "rgb(203, 225, 81)",
      "sidebar_border": "rgb(182, 212, 38)",
      "sidebar_highlight_text": "rgb(29, 29, 146)",
      "sidebar_highlight": "rgb(139, 139, 232)",
      "sidebar": "rgb(198, 198, 175)",
      "tab_background_separator": "rgb(208, 208, 48)",
      "tab_loading": "rgb(208, 208, 48)",
      "tab_text": "rgb(223, 226, 219)",
      "toolbar_bottom_separator": "rgb(186, 221, 25)",
      "toolbar_field_border": "rgb(204, 238, 48)",
      "toolbar_field_highlight_text": "rgb(186, 221, 25)",
      "toolbar_field_separator": "rgb(182, 212, 38)",
      "toolbar_top_separator": "rgb(193, 225, 40)",
      "toolbar_vertical_separator": "rgb(204, 238, 48)"
    }
  }
}