Examine source code of Coffee Cream

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Coffee Cream",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-021-775b159da029a74f5c76e835cd65e9dc.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(63, 61, 55)",
      "toolbar_text": "rgb(199, 196, 187)",
      "frame": "rgb(80, 78, 72)",
      "tab_background_text": "rgb(207, 202, 187)",
      "toolbar_field": "rgb(224, 237, 237)",
      "toolbar_field_text": "rgb(20, 88, 88)",
      "tab_line": "rgb(151, 146, 128)",
      "popup": "rgba(99, 98, 93, 0.89)",
      "popup_text": "rgb(231, 228, 217)",
      "icons_attention": "rgb(91, 153, 150)",
      "icons": "rgb(171, 167, 156)",
      "ntp_background": "rgb(3, 54, 65)",
      "tab_text": "rgb(225, 221, 213)",
      "toolbar_field_border_focus": "rgb(82, 133, 129)",
      "toolbar_field_border": "rgb(84, 123, 135)",
      "tab_loading": "rgb(151, 146, 128)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{df755358-757b-478b-9550-0c6aa0f3cd07}"
    }
  }
}