I've noticed if I leave the head field blank it just fills in with my tab header. How do I stop this? I want my pages completely blank because I'm using images for each page.

It has to have something. What I have done in the past was use a period, adjust the color, and size to be very small.

Example below of what I use for my PURGE Event Notice

{
  "settings": {
    "Tabs": [
      {
        "ButtonText": ".",
        "HeaderText": ".",
        "Pages": [
          {
            "TextLines": [],
            "ImageSettings": []
          }
        ],
        "TabButtonAnchor": 4,
        "TabButtonFontSize": 16,
        "HeaderAnchor": 0,
        "HeaderFontSize": 2,
        "TextFontSize": 2,
        "TextAnchor": 3,
        "OxideGroup": ""
      }
    ],
    "ShowInfoOnPlayerInit": true,
    "ShowInfoOnlyOncePerRuntime": true,
    "TabToOpenByDefault": 0,
    "Position": {
      "MinX": 0.05,
      "MaxX": 0.95,
      "MinY": 0.135,
      "MaxY": 0.87
    },
    "BackgroundImage": {
      "Enabled": true,
      "Position": {
        "MinX": 0.0,
        "MaxX": 1.0,
        "MinY": 0.0,
        "MaxY": 1.0
      },
      "Url": "http://ztlgaming.com/purge.png",
      "TransparencyInPercent": 100
    },
    "ActiveButtonColor": "#127127127255",
    "InactiveButtonColor": "#127127127255",
    "CloseButtonColor": "#660000cc",
    "NextPageButtonColor": "#660000cc",
    "PrevPageButtonColor": "#660000cc",
    "BackgroundColor": "#000000",
    "HelpButton": {
      "IsEnabled": false,
      "Text": "Help",
      "Position": {
        "MinX": 0.0,
        "MaxX": 0.05,
        "MinY": 0.1,
        "MaxY": 0.14
      },
      "Color": "#127127127255",
      "FontSize": 18
    },
    "UpgradedConfig": false
  }
}