UX Guide: Impossible to tell which numerical fonts support spaces

For example, the Fenix 5/935 family support spaces in the numerical fonts, but Edge does not. As far as I can tell, the only way to find out is try it out, or ask someone, since spaces are invisible

https://developer.garmin.com/connect...de/appendices/

Incidentally, if I inspect the HTML for the 935 available characters, I see a leading space (which is not even rendered.)

<p> #%+-./0123456789:°</p>

Maybe this needs to be made explicit?