Examine source code of Terrible Tech Tip

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Terrible Tech Tip",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(0, 0, 0)",
      "toolbar_text": "rgb(248, 112, 140)",
      "frame": "rgb(255, 124, 0)",
      "tab_background_text": "rgb(126, 240, 210)",
      "toolbar_field": "rgb(0, 255, 54)",
      "toolbar_field_text": "rgb(88, 82, 255)",
      "tab_line": "rgb(248, 112, 140)",
      "popup": "rgb(180, 58, 58)",
      "popup_text": "rgb(98, 102, 183)",
      "button_background_active": "rgb(54, 86, 78)",
      "frame_inactive": "rgb(50, 38, 184)",
      "icons": "rgb(221, 119, 30)",
      "ntp_text": "rgb(13, 255, 88)",
      "popup_highlight_text": "rgb(184, 110, 242)",
      "sidebar_border": "rgb(35, 164, 153)",
      "tab_background_separator": "rgb(26, 98, 82)",
      "tab_selected": "rgb(255, 239, 37)",
      "tab_text": "rgb(62, 87, 82)",
      "tab_loading": "rgb(248, 112, 140)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e44a12cc-8b2e-4cb9-9a9e-79b260a33f01}"
    }
  }
}