[NTG-context] Adjusting Font Based Math Parameters

Hi, For testing I would like to be able to adjust the font-based math parameters within ConTeXt MKIV. I have been trying this \startformula \Umathfractiondenomdown\displaystyle=1em \displaystyle \frac{a}{b} \stopformula but the second command does not seem to have any effect on the output at

[NTG-context] Typescript font for math script and scriptscript

Hi, I was wondering if there is a (good) way to have a specific font for sub/superscripts in mathematics that is different from the main font? I ask because I am working on a variable opentype math font, and it can be made to look a better if the superscripts are made a little bolder. Thanks i

[NTG-context] overbraces in concrete mathematics - bug?

version of ConTeXt I use is below. Thanks! Julius juliusross@Juliuss-MacBook-Air-2023 mkiv % context --version mtx-context | ConTeXt Process Management 1.06 mtx-context | mtx-context | main context file: /Users/juliusross/context/tex/texmf-context/tex/context/base/mkiv/context.mkiv