[NTG-context] Behaviour of \tfx versus \tfa

I found the following disparity in behaviour between \tfa, etc. and \tfx, \tfxx: \tfa, \tfb etc. do change mathsize too, but \tfx, \tfxx do not % These remedy it: \let\orgtfx\tfx \let\orgtfxx\tfxx \def\tfx{\orgtfx\dosetcurrentfontsize{x}} \def\tfxx{\orgtfxx\dosetcurrentfontsize{xx}} Is the difference intentional? Or is Hans willing to incorporate the change in a next beta? Hans van der Meer