Wouldn't the easiest way to achieve this be to fire up a vector editor (Illustrator etc.) and fill the voids in Colonna?
I was thinking of doing that, but then how to I make it back into a font? Just use a Font editor and achieve it that way?
I tried a few chars following pilaster's suggestion but I find the result awful. I the tried moving the seperate parts of the glyps to the right to get a less extreme fat result but the same goes ... brrrrr ...
koeiekat said 
I tried a few chars following pilaster's suggestion but I find the result awful. I the tried moving the seperate parts of the glyps to the right to get a less extreme fat result but the same goes ... brrrrr ...
I had a play in Illustrator, and to be honest, the Kat is right, It doesn't look very good.
You wrote "So for a logo that I am working on," not that "I'm required to create a font". If it's a logo, why does it need to be editable i.e. a font?
Edited on Mar 31, 2016 at 22:40 by pilaster
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