Examine source code of German Klaus

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Klaus",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(19, 22, 24)",
      "toolbar_text": "rgb(204, 11, 11)",
      "frame": "rgb(32, 33, 34)",
      "tab_background_text": "rgb(255, 0, 53)",
      "toolbar_field": "rgb(23, 21, 21)",
      "toolbar_field_text": "rgb(220, 215, 214)",
      "tab_line": "rgb(163, 99, 112)",
      "popup": "rgb(49, 46, 45)",
      "popup_text": "rgb(224, 6, 26)",
      "icons": "rgb(255, 37, 0)",
      "tab_loading": "rgb(163, 99, 112)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ee9f1b06-1c74-43f5-ab73-2be9f75be748}"
    }
  }
}