pling          rendering        comment
            x        y       x           y
  --------------------------------------------------------------
    v1.0   normal  normal  B/W           B/W    bi-level
    v1.6   high    high    gray          gray   grayscale
    v1.8   high    normal  color-filter  B/W    (GDI) ClearType
    v1.9   high    high    color-filter  gray   Color ClearType
    v2.1   high    normal  gray          B/W    Gray ClearType
    v2.1   high    high    gray          gray   Gray Clear