[NTG-context] About the font used in the document mathincontext-paper.pdf

Hello, I read this very good document and it says that it was written with the Pagella font. I use this font with a simple \setupbodyfont[pagella,11pt] but I find that the rendering is not the same as on the document, it is less nice especially in the writing of the theorems with the text in italic. Imaginary impression or reality ? Thanks. Fabrice