Examine source code of Green Crystal Ball

{
  "manifest_version": 2,
  "version": "2.0",
  "name": "Glacier Falls",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(195, 239, 215, 0.29)",
      "toolbar_text": "rgb(195, 239, 215)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(195, 239, 215)",
      "toolbar_field": "rgba(195, 239, 215, 0.54)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgb(195, 239, 215)",
      "popup": "rgb(171, 207, 187)",
      "popup_text": "rgba(0, 0, 0, 0.89)",
      "tab_loading": "rgb(195, 239, 215)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b8167151-87cc-434d-a44f-0dd16bd4e886}"
    }
  }
}