No way to change a text object's line height during runtime?

I've encountered an issue where NWjs consistently renders all text wrong. All text seems to be placed 11 % exactly too low compared to other browsers. Offsetting the line height 11% of the text height seems to fix the problem, but I can't change this during runtime? Any way to go about this?

Cheers

Edit: I tried updating the NWjs version and it worked. False alarm.