Approach S70 vector fonts

hi,

getVectorFont belongs to Device Context dc,
do 
if (dc has :getVectorFont && Toybox.Graphics.Dc has :drawRadialText) {
   dialFont = dc.getVectorFont({:face=>["RobotoCondensedRegular","RobotoRegular","Bionic"] ...

of course the function used to do so needs to have the dc argument (such as onUpdate etc)

that doesn't explain the fatal error IMHO. If my code is:
if (Toybox has :doesntExist) {dosomething();}
then dosomething should never be called

I am not a big programmer so that over my skill but according to the doc you can find getVectorFont inside Toybox.Graphics, but you can only call it through a dc, I can't tell why.

that is why 

Toybox.Graphics has :getVectorFont returns true.

I feel like I've verified that the conditions are functioning as I've written them, according to the support for devices I use, at least according to compiler/sim.

To clarify, I support 20+ amoled api4.2+ devices, all of for which this code works fine, *except* the two S70 devices. Also, I get a fatal error in sim, no exception I can catch.

Using SDK 6.4.2 ...