Examine source code of Arcade theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Arcade theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(8, 4, 26)",
      "toolbar_text": "rgb(128, 192, 223)",
      "frame": "rgb(8, 4, 26)",
      "tab_background_text": "rgb(246, 145, 253)",
      "toolbar_field": "rgb(23, 26, 60)",
      "toolbar_field_text": "rgb(229, 186, 73)",
      "tab_line": "rgb(252, 68, 198)",
      "popup": "rgb(8, 4, 26)",
      "popup_text": "rgb(198, 201, 255)",
      "icons": "rgb(82, 198, 253)",
      "ntp_background": "rgb(9, 2, 19)",
      "ntp_text": "rgb(188, 172, 255)",
      "popup_border": "rgb(248, 83, 238)",
      "sidebar_border": "rgb(255, 61, 244)",
      "sidebar_text": "rgb(229, 186, 73)",
      "sidebar": "rgb(8, 4, 26)",
      "tab_selected": "rgba(45, 9, 56, 0.61)",
      "tab_text": "rgb(229, 186, 73)",
      "toolbar_bottom_separator": "rgb(252, 68, 198)",
      "toolbar_field_border": "rgba(252, 68, 198, 0.49)",
      "toolbar_top_separator": "rgb(53, 8, 40)",
      "toolbar_vertical_separator": "rgb(12, 8, 37)",
      "tab_loading": "rgb(252, 68, 198)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{48c4e17d-d6bc-4a3e-abad-25e1af06ac11}"
    }
  }
}