TextOptions.TextRenderingMode Attached Property
Sets the TextRenderingMode for the element. This is an attached property.
Assembly: PresentationFramework (in PresentationFramework.dll)
You can tune the rendering of WPF ClearType text by using the Windows 7 ClearType Text Tuner. To access the text tuner in Windows 7, open the Control Panel, click Appearance and Personalization, click Display, and then click Adjust ClearType text.