Examine source code of Moonlight Forest

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Moonlight",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(7, 50, 84)",
      "toolbar_text": "rgb(255, 244, 194)",
      "frame": "rgb(3, 23, 41)",
      "tab_background_text": "rgb(112, 125, 248)",
      "toolbar_field": "rgb(38, 44, 102)",
      "toolbar_field_text": "rgb(255, 244, 194)",
      "tab_line": "rgb(113, 117, 240)",
      "popup": "rgb(26, 44, 81)",
      "popup_text": "rgb(50, 92, 215)",
      "ntp_background": "rgb(242, 242, 247)",
      "ntp_text": "rgb(0, 77, 196)",
      "tab_background_separator": "rgb(238, 234, 200)",
      "tab_loading": "rgb(177, 177, 189)"
    }
  }
}