[NTG-context] Something weird with white color

Hello, The following code does not work, the second white ConTeXt is black !!! \setupbackgrounds[page][background=color,backgroundcolor=blue] \starttext {\rotate[rotation=90]{\definedfont[SansBold at 24pt]\white \ConTeXt}} {\definedfont[SansBold at 16pt] \white ConTeXt} \stoptext No problem if we replace white with red (or other color) in \definedfont[SansBold at 16pt] \red ConTeXt and no problem if we write \white\rotate[rotation=90]{\definedfont[SansBold at 24pt]\ConTeXt} I compile with TeXlive2013. Why is the white color different ? Thanks, Bertrand