What do you want to achieve?
I want to have a easy font styles selection update by user preference at run time.
Just like a font option for user to choose which font they like to use and system will update all font in use.
Do you see alternative options and workaround to achieve it?
For now, we could just create a screen loaded event to trigger callback, to determine which font should be use and update each labels on screen one by one manually.
Mention some use cases
Just like my case, it would be a great help when user could switch font types at run time.