BrickColor won't work in my game, Roblox is unconvential.?

I have the simplest script here, but it doesn't work. I cease to figure out way. Any pointers?

part1 = script.Parent




while true do

	part1.BrickColor.new("Light yellow")
	wait(1)
	

	 BrickColor.new("Pastel Blue")
	wait(1)
end

You need to make a local variable with the part1 = script.Parent and for good measures try and make it like this --> local part1 = script.Parent.Part1

You also need to make sure it is a script and it goes in the Part in question

Make sure to also always when your scripting make a reference to the part-property in question for example part1.BrickColor and then equate that called property to the actual property function. For example - part1.BrickColor = BrickColor.new('Color')

Now here is an example in your case -

local part1 = script.Parent.Parent.Part1

while true do
	wait(3)
	part1.BrickColor = BrickColor.new('Light blue')
	wait(1)
	part1.BrickColor = BrickColor.new('Really black')
end