home/.config/i3/trees/dsk.json

{
	"border": "normal",
	"current_border_width": 2,
	"floating": "auto_off",
	"percent": 0.6,
	"swallows": [
		{
			"class": "^Mate-terminal$"
		}
	],
	"type": "con"
}

{
	"border": "pixel",
	"floating": "auto_off",
	"layout": "splitv",
	"percent": 0.4,
	"type": "con",
	"nodes": [
		{
			"border": "normal",
			"current_border_width": 2,
			"floating": "auto_off",
			"percent": 0.8,
			"swallows": [
				{
					"class": "^Mate-terminal$"
				}
			],
			"type": "con"
		},
		{
			"border": "normal",
			"current_border_width": 2,
			"floating": "auto_off",
			"percent": 0.2,
			"swallows": [
				{
					"class": "^Mate-terminal$"
				}
			],
			"type": "con"
		}
	]
}