Examine source code of Glass

{
  "manifest_version": 2,
  "version": "1.9",
  "name": "Glass",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(66, 65, 68, 0)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(79, 77, 81, 0)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(255, 0, 3)",
      "popup": "rgb(4, 87, 87)",
      "popup_text": "rgb(203, 208, 198)",
      "ntp_background": "rgb(34, 34, 48)",
      "tab_loading": "rgb(255, 0, 3)"
    }
  }
}