Fading transparency without many lines?

you use a for n=startNumber,goalNumber,incrementationNumber do

basically it's like this:

for i=0,1,0.1 do
	print(i)
end

one thing to note is that if you are using a conditional operator between two objects then the last true object is gonna get returned so it's like this:

print(true and 3) --returns 3
print(true and "test") -- returns test
print(2 and 3) --returns 3
print(false and 2 or 3) -- returns 3 because false *and* 2 are false

now the script:

local Open = true -- change this if the whole thing is not visible by default
local TextLabel = script.Parent
function openClose()
	local goal = Open and 1 or 0 -- if Open is true then the goal of transparency for all of those elements would be 1 (transparent) or else (not transparent)
	local start = goal == 1 and 0 or 1
	local inc = goal == 1 and 0.1 or -0.1 -- change 0.1 if you want it to be slower/faster
	for i=start,goal,inc do 
		TextLabel.Transparency = i
		TextLabel.TextTransparency = i -- you don't have to change the stroke because when text is transparent then the stroke is as well
		wait(0.2) -- or this to be slower/faster
	end
	Open = not Open -- make it the opposite of what it was
end