Examine source code of SummerBuildz

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "summer bliss",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-037-b73f9b34467ba541de861f5b4c0c6316.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(0, 199, 255)",
      "toolbar_text": "rgb(0, 0, 37)",
      "frame": "rgb(0, 119, 105)",
      "tab_background_text": "rgb(201, 212, 0)",
      "toolbar_field": "rgb(232, 232, 232)",
      "toolbar_field_text": "rgb(0, 13, 255)",
      "tab_line": "rgb(6, 0, 255)",
      "popup": "rgb(201, 212, 0)",
      "popup_text": "rgb(0, 12, 247)",
      "button_background_hover": "rgb(201, 212, 0)",
      "icons": "rgb(0, 13, 255)",
      "sidebar_highlight": "rgb(0, 13, 251)",
      "tab_background_separator": "rgb(201, 212, 0)",
      "tab_selected": "rgb(201, 212, 0)",
      "tab_text": "rgb(0, 13, 251)",
      "toolbar_field_separator": "rgb(201, 212, 0)",
      "toolbar_top_separator": "rgb(232, 232, 232)",
      "tab_loading": "rgb(6, 0, 255)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{18d8a12d-b8e2-4aef-a702-e9ff31d25d5f}"
    }
  }
}