Examine source code of Stellar Browsing

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Space 2023",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left top"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(29, 17, 53)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(12, 22, 79)",
      "tab_background_text": "rgb(156, 160, 222)",
      "toolbar_field": "rgb(86, 67, 253)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(86, 67, 253)",
      "popup": "rgb(29, 17, 53)",
      "popup_text": "rgb(156, 160, 222)",
      "button_background_active": "rgb(156, 160, 222)",
      "icons": "rgb(113, 247, 255)",
      "ntp_background": "rgb(93, 93, 93)",
      "ntp_text": "rgb(255, 255, 255)",
      "popup_border": "rgb(63, 71, 211)",
      "tab_selected": "rgb(86, 67, 253)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgb(0, 0, 0)",
      "toolbar_field_border": "rgb(29, 17, 53)",
      "toolbar_field_highlight": "rgb(51, 60, 219)",
      "toolbar_top_separator": "rgb(0, 0, 0)",
      "tab_loading": "rgb(86, 67, 253)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{fbbe597b-2ee4-4b28-9893-e989f00a9096}"
    }
  }
}