Script Not Changing Properties Of Gui When Looping Through Table Of Properties?

It is supposed to make the gui fade in but it doesnt change any of the properties but it prints all of them fine?

local ui = script.Parent
local Panel = ui.Panel
local Open = ui.Open

local isOpen = false
local fading = false

local Props = {
	["Frame"] = "BackgroundTransparency",
	["TextButton"] = {
		"BackgroundTransparency",
		"TextTransparency"
	},
	["ImageLabel"] = "ImageTransparency",
	["TextLabel"] = {
		"BackgroundTransparency",
		"TextTransparency"
	}
}

function checkType(ins)
	if ins.ClassName == nil then
		return typeof(ins)
	elseif ins.ClassName ~= nil then
		print(ins.ClassName)
		return ins.ClassName
	end
end

function fadeIn()
	fading = true
	for _, ins in pairs(Panel:GetDescendants()) do
		local typ = checkType(ins)
		if Props[typ] then
			for i = 1, 0, -0.1 do
				wait(0.1)
				if checkType(Props[typ]) == "table" then
					for _, prop in pairs(Props[typ]) do
						print(prop)
						ins[prop] = ins[prop] + i
					end
				elseif typeof(checkType(Props[typ])) == "string" then
					print(Props[typ])
					if typeof(Props[typ]) == "table" then
						for i, prop in pairs(Props[typ]) do
							ins[prop[i]] = ins[prop[i]] + i
						end
					else
						ins[Props[typ]] = ins[Props[typ]] + i
					end
				end
			end
		end
	end
	fading = false
end

function fadeOut()
	fading = true
	for _, ins in pairs(Panel:GetDescendants()) do
		local typ = checkType(ins)
		if Props[typ] then
			for i = 0, 1, 0.1 do
				wait(0.1)
				if checkType(Props[typ]) == "Table" then
					for _, prop in pairs(Props[typ]) do
						ins[prop] = ins[prop] + i
					end
				elseif checkType(Props[typ]) == "String" then
					ins[Props[typ]] = ins[Props[typ]] + i
				end
			end
		end
	end
	fading = false
end

Open.MouseButton1Click:Connect(function()
	if not fading then
		if isOpen then
			fadeOut()
			isOpen = false
			return
		elseif isOpen == false then
			fadeIn()
			isOpen = true
		end
	end
end)