Examine source code of Ai Theme .

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Ai .",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-031-9570e8d1f7a5f835c92e764693337f43.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(164, 194, 217)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(164, 194, 217)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(206, 231, 253)",
      "toolbar_field_text": "rgb(89, 89, 89)",
      "tab_line": "rgb(164, 194, 217)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(8, 8, 8)",
      "tab_loading": "rgb(164, 194, 217)"
    }
  }
}