Dear Xara...

I applaud the effort in creating Recolor and Resize Example v16.xar.
I had to access the PDF Manual to understand how to enforce the Auto-fit to container aspect but once there I found it simple to apply.
It is far superior to the Text Inside approach as I can use other objects to repel more intuitively.

It is equally not immediately apparent that one can change the appearance of the Smart Labelled Lines offered.
Their failures are that they have been developed without curvature to aid the auto-dimensioning of the numeric label.
The bigger fail is the heads and tails are solid and so incongruous to the line itself.

Another document describing the features of these new lines will greatly assist those who may just dismiss them are a limited gimmick as there is nothing in the PDF Manual.

Acorn