Examine source code of core presciatu

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "core presciatu",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(157, 16, 4)",
      "toolbar_text": "rgb(253, 222, 24)",
      "frame": "rgb(90, 0, 0)",
      "tab_background_text": "rgb(204, 127, 15)",
      "toolbar_field": "rgb(45, 49, 87)",
      "toolbar_field_text": "rgb(248, 255, 0)",
      "tab_line": "rgb(255, 241, 0)",
      "popup": "rgb(4, 4, 85)",
      "popup_text": "rgb(255, 241, 0)",
      "button_background_active": "rgb(55, 87, 149)",
      "ntp_background": "rgb(54, 41, 127)",
      "popup_border": "rgb(253, 222, 24)",
      "popup_highlight": "rgb(141, 1, 158)",
      "tab_loading": "rgb(255, 241, 0)"
    }
  }
}