; Set up the GUI for the overlay
CustomColor := "EEAA99" ; You can change this to any RGB color
Gui +LastFound +AlwaysOnTop -Caption +ToolWindow
Gui, Color, %CustomColor%
Gui, Font, s12 ; Set a large font size (32-point)
Gui, Add, Text, vMyText cWhite, 5 ; Initial countdown value
WinSet, TransColor, %CustomColor% ; Make the background transparent

; Hotkey to start the countdown
~E::
    IfWinActive, Path of Exile
    {
        Gui, Show, x1200 y700 NoActivate ; Show the overlay
        counter := 5
        SetTimer, UpdateOSD, 1000
    }
    return

UpdateOSD:
    counter--
    if (counter < 0) {
        SetTimer, UpdateOSD, Off
        GuiControl,, MyText, 5 ; Reset the countdown display
        SoundBeep(523, 250, 25) ; Play a beep sound (frequency 750 Hz, duration 300 ms)
        Gui, Hide ; Hide the overlay
        return
    }
    GuiControl,, MyText, %counter%
    return

; Hide the GUI when Path of Exile is not active
#IfWinNotActive, Path of Exile
    Gui, Hide
#IfWinActive

;-------------------------------------------------------------------------------
SoundBeep(Frequency, Duration, Volume) { ; custom wrapper
;-------------------------------------------------------------------------------
    SoundGet, MasterVolume
    SoundSet, Volume
    SoundBeep, Frequency, Duration
    SoundSet, MasterVolume
}