Examine source code of Neo Night

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Neo Night",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-030-0f935cfde055600d01a959c5c15353de.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(54, 55, 55)",
      "toolbar_text": "rgb(90, 132, 245)",
      "frame": "rgb(12, 13, 13)",
      "tab_background_text": "rgb(19, 221, 161)",
      "toolbar_field": "rgb(12, 18, 18)",
      "toolbar_field_text": "rgb(78, 112, 237)",
      "tab_line": "rgb(86, 86, 211)",
      "popup": "rgb(23, 23, 26)",
      "popup_text": "rgb(98, 102, 183)",
      "tab_loading": "rgb(86, 86, 211)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{55c4850b-ac68-48d9-ad6e-861a1dcad714}"
    }
  }
}