Is there any CSS like way to update settings to all related UI elements?

One example being changing the font size for all buttons, or background colours for borders etc.

Even if Unreal doesn’t have this already, I am also interested in finding out if this can be done programmatically, from blueprints to C++, plugins or even with a data table set up of some sorts.

The method doesn’t matter, as long there is a way to click a button and magically change the entire UI in a split second, almost.

Thank you for your time and may your day be excellent!