I also don't agree at all with the font used for he "E" on the emerald. I would actually suggest not having an E at all, instead using horizontal lines to emphasize that it's a text editor.
That's an idea I like, and I must say I was never too happy about the "E" in either of the icons. Not the font, not the "E" itself. But I do prefer the appearance of the new emeralds over that of the old one.