utunnels was able to solve this with a plugin utilizing opentype.js Go and use that one. The Sharp Text plugin will still be maintained for people who are using it but I highly recommend OpenType Pixel Font Renderer instead.
Sharp Text v0.94 beta
MechPen
Introduction
I'm working on a bleep-bloop retro style game, and was annoyed at how blurry the text looked. Any size, any resolution, any CSS options; the UI Text just looked sad. It's not really an engine flaw either; just a symptom of how HTML5 canvas renders text. This attempts to fix that, mostly though the magic of ImageData.
Features
Removes the Anti-aliasing on all text in the game.