Fullbright

if not _G.FullBrightExecuted then

    _G.FullBrightEnabled = false

    _G.NormalLightingSettings = {
        Brightness = game:GetService("Lighting").Brightness,
        ClockTime = game:GetService("Lighting").ClockTime,
        FogEnd = game:GetService("Lighting").FogEnd,
        GlobalShadows = game:GetService("Lighting").GlobalShadows,
        Ambient = game:GetService("Lighting").Ambient
    }

    game:GetService("Lighting"):GetPropertyChangedSignal("Brightness"):Connect(function()
        if game:GetService("Lighting").Brightness ~= 1 and game:GetService("Lighting").Brightness ~= _G.NormalLightingSettings.Brightness then
            _G.NormalLightingSettings.Brightness = game:GetService("Lighting").Brightness
            if not _G.FullBrightEnabled then
                repeat
                    wait()
                until _G.FullBrightEnabled
            end
            game:GetService("Lighting").Brightness = 1
        end
    end)

    game:GetService("Lighting"):GetPropertyChangedSignal("ClockTime"):Connect(function()
        if game:GetService("Lighting").ClockTime ~= 12 and game:GetService("Lighting").ClockTime ~= _G.NormalLightingSettings.ClockTime then
            _G.NormalLightingSettings.ClockTime = game:GetService("Lighting").ClockTime
            if not _G.FullBrightEnabled then
                repeat
                    wait()
                until _G.FullBrightEnabled
            end
            game:GetService("Lighting").ClockTime = 12
        end
    end)

    game:GetService("Lighting"):GetPropertyChangedSignal("FogEnd"):Connect(function()
        if game:GetService("Lighting").FogEnd ~= 786543 and game:GetService("Lighting").FogEnd ~= _G.NormalLightingSettings.FogEnd then
            _G.NormalLightingSettings.FogEnd = game:GetService("Lighting").FogEnd
            if not _G.FullBrightEnabled then
                repeat
                    wait()
                until _G.FullBrightEnabled
            end
            game:GetService("Lighting").FogEnd = 786543
        end
    end)

    game:GetService("Lighting"):GetPropertyChangedSignal("GlobalShadows"):Connect(function()
        if game:GetService("Lighting").GlobalShadows ~= false and game:GetService("Lighting").GlobalShadows ~= _G.NormalLightingSettings.GlobalShadows then
            _G.NormalLightingSettings.GlobalShadows = game:GetService("Lighting").GlobalShadows
            if not _G.FullBrightEnabled then
                repeat
                    wait()
                until _G.FullBrightEnabled
            end
            game:GetService("Lighting").GlobalShadows = false
        end
    end)

    game:GetService("Lighting"):GetPropertyChangedSignal("Ambient"):Connect(function()
        if game:GetService("Lighting").Ambient ~= Color3.fromRGB(178, 178, 178) and game:GetService("Lighting").Ambient ~= _G.NormalLightingSettings.Ambient then
            _G.NormalLightingSettings.Ambient = game:GetService("Lighting").Ambient
            if not _G.FullBrightEnabled then
                repeat
                    wait()
                until _G.FullBrightEnabled
            end
            game:GetService("Lighting").Ambient = Color3.fromRGB(178, 178, 178)
        end
    end)

    game:GetService("Lighting").Brightness = 1
    game:GetService("Lighting").ClockTime = 12
    game:GetService("Lighting").FogEnd = 786543
    game:GetService("Lighting").GlobalShadows = false
    game:GetService("Lighting").Ambient = Color3.fromRGB(178, 178, 178)

    local LatestValue = true
    spawn(function()
        repeat
            wait()
        until _G.FullBrightEnabled
        while wait() do
            if _G.FullBrightEnabled ~= LatestValue then
                if not _G.FullBrightEnabled then
                    game:GetService("Lighting").Brightness = _G.NormalLightingSettings.Brightness
                    game:GetService("Lighting").ClockTime = _G.NormalLightingSettings.ClockTime
                    game:GetService("Lighting").FogEnd = _G.NormalLightingSettings.FogEnd
                    game:GetService("Lighting").GlobalShadows = _G.NormalLightingSettings.GlobalShadows
                    game:GetService("Lighting").Ambient = _G.NormalLightingSettings.Ambient
                else
                    game:GetService("Lighting").Brightness = 1
                    game:GetService("Lighting").ClockTime = 12
                    game:GetService("Lighting").FogEnd = 786543
                    game:GetService("Lighting").GlobalShadows = false
                    game:GetService("Lighting").Ambient = Color3.fromRGB(178, 178, 178)
                end
                LatestValue = not LatestValue
            end
        end
    end)
end

_G.FullBrightExecuted = true
_G.FullBrightEnabled = not _G.FullBrightEnabled