minetest-i4/etc/test_tabs.lua

i3.new_tab {
	name = "test1",
	description = "Test 1 Test 1",
	image = "i3_heart.png",

	formspec = function(player, data, fs)
		fs("label[3,1;Test 1]")
	end,
}

i3.new_tab {
	name = "test2",
	description = "Test 2",
	image = "i3_mesepick.png",

	formspec = function(player, data, fs)
		fs("label[3,1;Test 2]")
	end,
}

i3.new_tab {
	name = "test3",
	description = "Test 3",

	access = function(player, data)
		local name = player:get_player_name()
		if name == "singleplayer" then
			return true
		end
	end,

	formspec = function(player, data, fs)
		fs("label[3,1;Test 3]")
	end,

	fields = function(player, data, fields)
		i3.set_fs(player, "label[3,2;Test extra_fs]")
	end,
}

i3.override_tab("test2", {
	name = "test2",
	description = "Test override",
	image = "i3_mesepick.png",

	formspec = function(player, data, fs)
		fs("label[3,1;Override!]")
	end,
})