Structure

Template

{
	"path.to.my.value" :
	{
		"defaultValue" : "Some default value"
	},
	"path.to.my.defaultValue" :
	{
		"defaultValue" : "Set by template"
	},
	"path.to.my.otherValue" :
	{
	},
	"path.to.another.path" :
	{
		"defaultValue" : "This is the default value"
	}
}

User config

{
	"path" :
	{
		"to" :
		{
			"my" :
			{
				"value" : "Some default value"
				"defaultValue" : "Set by template",
				"otherValue : null
			},
			"another" :
			{
				"path" : "This is the default value"
			}
		}
	}
}