Examine source code of Supernova Space

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Supernova",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(225, 234, 239, 0)",
      "toolbar_text": "rgb(192, 38, 226)",
      "frame": "rgb(142, 179, 201)",
      "tab_background_text": "rgb(0, 0, 0)",
      "toolbar_field": "rgba(255, 255, 255, 0.33)",
      "toolbar_field_text": "rgb(151, 22, 202)",
      "tab_line": "rgb(148, 6, 222)",
      "popup": "rgb(8, 8, 8)",
      "popup_text": "rgb(175, 8, 221)",
      "popup_border": "rgb(171, 5, 216)",
      "tab_loading": "rgb(148, 6, 222)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{40dc6a02-aa0b-4835-b22f-80154171a3d9}"
    }
  }
}