What Can I do for Hovering over GUI's?

So I am making a Game selection GUI and So basically what I am trying to achive is when a player hovers his mouse over the TextButton It will change color. But the thing Is I have been looking everywhere around the internet and I still cannot find a way to make this happen...If ANYBODY can Help me that would be very helpfull

textButton.MouseEnter:connect(function()
	textButton.BackgroundColor3 = Color3.new(YourColor)
end)