Examine source code of City Lights Shuffle

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "City Lights Shuffle",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(13, 13, 14)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(39, 28, 52)",
      "tab_background_text": "rgb(232, 227, 236)",
      "toolbar_field": "rgb(242, 239, 245)",
      "toolbar_field_text": "rgb(6, 0, 10)",
      "tab_line": "rgb(190, 81, 249)",
      "popup": "rgb(21, 10, 34)",
      "popup_text": "rgb(136, 241, 253)",
      "popup_border": "rgb(198, 125, 40)",
      "tab_text": "rgb(251, 233, 80)",
      "tab_loading": "rgb(190, 81, 249)"
    }
  }
}