Examine source code of modern neon blue

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "modern neon blue",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-001-9c6d74e14860e77ee6f8f43e824bff25.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(0, 0, 0)",
      "toolbar_text": "rgb(0, 38, 255)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(32, 17, 255)",
      "toolbar_field": "rgb(3, 3, 3)",
      "toolbar_field_text": "rgb(107, 107, 255)",
      "tab_line": "rgb(37, 58, 207)",
      "popup": "rgb(0, 0, 0)",
      "popup_text": "rgb(10, 13, 247)",
      "tab_loading": "rgb(37, 58, 207)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{99ecfa23-4004-4d4f-9d91-c34743c5924a}"
    }
  }
}