Examine source code of neon city

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "neon city",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(22, 44, 64)",
      "toolbar_text": "rgb(148, 248, 248)",
      "frame": "rgb(22, 44, 64)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(148, 248, 248)",
      "toolbar_field_text": "rgb(242, 7, 137)",
      "tab_line": "rgb(242, 7, 137)",
      "popup": "rgb(22, 44, 64)",
      "popup_text": "rgb(148, 248, 248)",
      "button_background_active": "rgb(53, 242, 242)",
      "button_background_hover": "rgb(0, 238, 255)",
      "frame_inactive": "rgb(252, 91, 150)",
      "icons_attention": "rgb(148, 248, 248)",
      "icons": "rgb(16, 163, 180)",
      "ntp_background": "rgb(3, 31, 58)",
      "ntp_text": "rgb(57, 255, 20)",
      "popup_border": "rgb(0, 238, 255)",
      "popup_highlight_text": "rgb(17, 174, 191)",
      "popup_highlight": "rgb(242, 7, 137)",
      "sidebar_border": "rgb(57, 255, 20)",
      "sidebar_highlight_text": "rgb(242, 7, 137)",
      "sidebar_highlight": "rgb(252, 91, 150)",
      "sidebar_text": "rgb(17, 174, 191)",
      "tab_loading": "rgb(242, 7, 137)"
    }
  }
}