I think you may need to modify Iron for transparency? This demo has transparency.
I have just uploaded my modified Iron for this experiment, probably need to install a few of my haxelibs to build my test and may need to tweak code to actually run, so better just to look at any relevant code. There is a switch at moment, it’s in debug mode so ignores svg colors and just uses random colors to show actual triangles.
Not sure on the process for Armory3d as this is pure Iron test. If this is not relevant then feel free to ignore as I don’t know anything about Specular.
This version of Iron is probably related to issue raised in trying to get full trilaterial functionality.
( Prob have TTF example around somewhere as well ).