Examine source code of Frozen Moss

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Frozen Moss",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-013-06591d4ad28ab7b9ee90f62f81d6b505.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(20, 102, 102)",
      "toolbar_text": "rgb(224, 227, 227)",
      "frame": "rgb(55, 56, 55)",
      "tab_background_text": "rgb(113, 162, 137)",
      "toolbar_field": "rgb(113, 162, 137)",
      "toolbar_field_text": "rgb(38, 38, 38)",
      "tab_line": "rgb(157, 217, 207)",
      "popup": "rgb(113, 162, 137)",
      "popup_text": "rgb(20, 102, 102)",
      "icons": "rgb(224, 227, 227)",
      "ntp_background": "rgb(55, 56, 55)",
      "ntp_text": "rgb(224, 227, 227)",
      "popup_highlight_text": "rgb(38, 38, 38)",
      "popup_highlight": "rgb(157, 217, 207)",
      "tab_loading": "rgb(224, 227, 227)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{308526a0-bd65-4b17-8c1a-488a2b9e179b}"
    }
  }
}