Examine source code of purplism

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "purplism",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-020-48c286b34e53380d46803c2e5603a5b2.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(70, 17, 114)",
      "toolbar_text": "rgb(251, 4, 251)",
      "frame": "rgb(37, 22, 74)",
      "tab_background_text": "rgb(255, 135, 27)",
      "toolbar_field": "rgb(247, 245, 243)",
      "toolbar_field_text": "rgb(255, 134, 59)",
      "tab_line": "rgb(255, 144, 34)",
      "popup": "rgb(49, 7, 84)",
      "popup_text": "rgb(228, 51, 214)",
      "tab_loading": "rgb(255, 144, 34)"
    }
  }
}