The image used for UI tab buttons, visible in the settings menu. You will need to set the border and borderWidth values to make sure it stretches properly.
Default Dimensions: 400x400 pixels (this can be any size you want)
{
"color": "ADADADFF",
"type": "Sliced",
"border": [
80.0,
80.0,
80.0,
80.0
],
"borderWidth": 0.2,
"filterMode": "Point",
"wrapMode": "Clamp"
}
When you create your JSON file, if you don't include a variable it will just use the default value. You don't need to include every variable! Only include variables you want to change, otherwise it will get messy.
This JSON file uses enums, which are just variables that have multiple preset options. Here are the options for the included enums: