Examine source code of Chrome Colorful Spring

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Chrome Colorful Spring",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(253, 246, 240)",
      "toolbar_text": "rgb(0, 0, 0)",
      "frame": "rgb(142, 179, 201)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(177, 203, 224)",
      "toolbar_field_text": "rgb(12, 13, 32)",
      "tab_line": "rgb(255, 138, 238)",
      "popup": "rgb(253, 246, 240)",
      "popup_text": "rgb(12, 13, 32)",
      "button_background_active": "rgb(195, 111, 137)",
      "button_background_hover": "rgb(195, 111, 137)",
      "frame_inactive": "rgb(229, 255, 38)",
      "ntp_background": "rgb(195, 111, 137)",
      "ntp_text": "rgb(253, 246, 240)",
      "popup_border": "rgb(219, 255, 140)",
      "sidebar_border": "rgb(244, 255, 83)",
      "sidebar_text": "rgb(0, 0, 0)",
      "sidebar": "rgb(253, 246, 240)",
      "tab_loading": "rgb(208, 255, 254)",
      "toolbar_bottom_separator": "rgb(131, 229, 19)",
      "toolbar_field_highlight_text": "rgb(4, 4, 4)",
      "toolbar_field_highlight": "rgb(224, 255, 189)",
      "toolbar_field_text_focus": "rgb(255, 238, 169)",
      "toolbar_top_separator": "rgb(34, 204, 207)"
    }
  }
}