Examine source code of Dark Sakura

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Dark Sakura",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-013-06591d4ad28ab7b9ee90f62f81d6b505.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(53, 20, 35)",
      "toolbar_text": "rgb(244, 59, 99)",
      "frame": "rgb(32, 14, 22)",
      "tab_background_text": "rgb(248, 223, 224)",
      "toolbar_field": "rgb(231, 197, 242)",
      "toolbar_field_text": "rgb(195, 83, 195)",
      "tab_line": "rgb(248, 112, 140)",
      "popup": "rgb(234, 180, 205)",
      "popup_text": "rgb(0, 0, 0)",
      "tab_loading": "rgb(248, 112, 140)"
    }
  }
}