This issue was raised some time ago it appears.
- GitHub | OpenFL - Issues - Add support for TextFormat letterSpacing
- OpenFL Community - No letter spacing in textfields HTML5 build
From what I can garner, support was never fully implemented for HTML5, and if I’m not mistaken, I suspect this was due to a prior limitation in the CanvasRenderingContext2D.fillText() method not supporting letter spacing. From what I can gather, up until March this year, the method didn’t offer letter spacing control, and so in order to support letter spacing, OpenFL would have to hack in a work-around, like treating each character as a separate field and then spacing them accordingly, which would likely produce other problems.
Now however, it appears a letterSpacing property has been added to CanvasRenderingContext2D, so perhaps it’s possible to finally add support to OpenFL.
