GDIPlus messing up Text

Derp, accidently it
Ok, so when I make some text with GDIplus, it attempts to make it look better by adding hue to the right / left sides of letters. example:

The top "this" is the rendered text, the bottom one is the same with the pixels magnified 600%
I do not want it to do this! Please help

#include <GUIConstantsEx.au3>
#include <GDIPlus.au3>
_Main()
Func _Main()
Local $hGUI, $hGraphic, $hBrush, $hFormat, $hFamily, $hFont, $tLayout
Local $sString = "This is a string", $aInfo
; Create GUI
$hGUI = GUICreate("GDI+", 150, 60)
; Draw a string
_GDIPlus_Startup()
$hGraphic = _GDIPlus_GraphicsCreateFromHWND($hGUI)
$hBitmap = _GDIPlus_BitmapCreateFromGraphics(150,60,$hGraphic)
$hContext = _GDIPlus_ImageGetGraphicsContext($hBitmap)
$hBrush = _GDIPlus_BrushCreateSolid(0xFF000000)
$hBrush2 = _GDIPlus_BrushCreateSolid(0xFFFFFFFF)
$hFormat = _GDIPlus_StringFormatCreate()
$hFamily = _GDIPlus_FontFamilyCreate("Arial")
$hFont = _GDIPlus_FontCreate($hFamily, 12, 1)
$tLayout = _GDIPlus_RectFCreate(15, 15, 150, 30)
_GDIPlus_GraphicsFillRect($hContext,0,0,150,60,$hBrush2)
_GDIPlus_GraphicsDrawStringEx($hContext, $sString, $hFont, $tLayout, $hFormat, $hBrush)
_GDIPlus_ImageSaveToFile($hBitmap,"This is an image.png")
ShellExecute("This is an image.png")
; Clean up resources
_GDIPlus_FontDispose($hFont)
_GDIPlus_FontFamilyDispose($hFamily)
_GDIPlus_StringFormatDispose($hFormat)
_GDIPlus_BrushDispose($hBrush)
_GDIPlus_BrushDispose($hBrush2)
_GDIPlus_BitmapDispose($hBitmap)
_GDIPlus_GraphicsDispose($hGraphic)
_GDIPlus_Shutdown()
EndFunc ;==>_Main