Examine source code of Purple_royale

{
  "manifest_version": 2,
  "version": "2.0",
  "name": "Royal Purple",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-018-0ca3dfc7bb661ec53999d358812ce0ab.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(13, 0, 0)",
      "toolbar_field": "rgb(0, 0, 0)",
      "toolbar_field_text": "rgb(242, 247, 191)",
      "tab_line": "rgb(0, 255, 31)",
      "popup": "rgb(0, 0, 0)",
      "popup_text": "rgb(198, 192, 199)",
      "tab_loading": "rgb(0, 255, 31)",
      "bookmark_text": "rgb(141, 137, 142)",
      "frame": "rgb(10, 0, 10)",
      "tab_background_text": "rgb(246, 211, 255)"
    }
  }
}