Won't let the ColorCorrection fade out?

It does fade in but it won't fade out later on.

local color = game.Lighting.ColorCorrection

local db = true
local player = game.Players.LocalPlayer
local target = game.Workspace.Lobby.LobbyPoint
local delay = 3
script.Parent.MouseButton1Click:connect(function()
 if db == true then
  db = false
    for i = 0,1,0.025 do
        wait()
        color.Brightness = i
    end
    wait(1)
  player.Character.HumanoidRootPart.CFrame = target.CFrame * CFrame.new(0,3,0)
    wait(1)
    for i = 1,0,-0.025 do -- From here
        wait()
        color.Brightness = i
    end
    script.Parent.Parent.Visible = false
  for i = delay, 1, -1 do
   script.Parent.Text = i
   wait(1)
  end
  script.Parent.Text = "Continue"
  db = true
 end
end)