When calling GraphicsEx.DrawString with a font angle of 270, the rectangle is filled black (this happens for none of the other angles):
Rectangle r = new Rectangle(50,50,100,100);
GraphicsEx graphics = GraphicsEx.FromControl(this);
FontEx f = new FontEx(Font.Name,Font.Size,Font.Style);
f.Angle = 270;
graphics.DrawString("270",f,Color.Black,r);
Could this be to do with the fact that GDIPlus constants OPAQUE and DT_RIGHT are the same and the call to GDIPlus.DrawText has been replaced with GDIPlus.ExtTextOut in GraphicsEx.DrawText?
The workaround seems to be to ensure the rectangle has 0 width and height.
SDF version 1.4.50804
PPC 2003 SE emulator