Examine source code of Purple Vision

{
  "manifest_version": 2,
  "version": "1.3",
  "name": "Honourable Purple Flowers",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(106, 27, 154, 0.6)",
      "toolbar_text": "rgb(247, 214, 252)",
      "frame": "rgb(74, 20, 140)",
      "tab_background_text": "rgb(74, 20, 140)",
      "toolbar_field": "rgba(247, 214, 252, 0.24)",
      "toolbar_field_text": "rgb(253, 244, 255)",
      "tab_line": "rgb(225, 190, 231)",
      "popup": "rgba(74, 20, 140, 0.75)",
      "popup_text": "rgb(247, 214, 252)",
      "icons": "rgb(247, 214, 252)",
      "tab_loading": "rgb(225, 190, 231)"
    }
  }
}