Examine source code of searchindadark

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "searchindadark",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(122, 72, 76, 0.89)",
      "toolbar_text": "rgb(25, 233, 170)",
      "frame": "rgb(36, 41, 47)",
      "tab_background_text": "rgb(213, 143, 47)",
      "toolbar_field": "rgb(26, 15, 48)",
      "toolbar_field_text": "rgb(194, 255, 137)",
      "tab_line": "rgb(248, 66, 244)",
      "popup": "rgb(55, 9, 75)",
      "popup_text": "rgb(216, 153, 35)",
      "tab_loading": "rgb(248, 66, 244)"
    }
  }
}