Dear Xara...

Your implementation of fully justified text is abhorrent at present.
For left-aligned paragraphs, these are currently sliced into lines of text (SPANs) and positioned to a hundredth of a pixel.
When fully justified, you strive for inter-word space padding. The outcome is each word is now presented within its own SPAN, apart from the last paragraph line, retaining its left justification.

I shudder to think what the output would be like if you had decided on inter-letter padding.

Can you consider a more logical approach?

Acorn