Examine source code of red/purple update

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "red/purple update",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-006-51ab495c5f5dde6a3cddb22484acd00d.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(44, 8, 9)",
      "toolbar_text": "rgb(147, 5, 255)",
      "frame": "rgb(15, 8, 55)",
      "tab_background_text": "rgb(255, 3, 3)",
      "toolbar_field": "rgb(7, 0, 0)",
      "toolbar_field_text": "rgb(46, 74, 255)",
      "tab_line": "rgb(177, 28, 177)",
      "popup": "rgb(87, 5, 3)",
      "popup_text": "rgb(0, 253, 229)",
      "ntp_background": "rgb(6, 1, 1)",
      "tab_loading": "rgb(177, 28, 177)"
    }
  }
}