Comment 7 for bug 287943

There are workarounds (using integer numbers and pixel as units for positioning and size of the elements, working with a 1px grid, etc:) that make me wonder if this should be marked as invalid.
It's already possible to work with pixel precision.
However, what you mention about text has some valid points.
I'll put this as a wishlist item, but maybe creating a meta-bug for text limitations would be better, and we should close this report since the rest of the requested operations are already possible.

Although, as I mentioned before, a detailed blueprint would be very interesting.