In one of the documents that I created with Xara Pro 8, the guides are shown as normal lines. They are not the usual red dotted lines anymore. And in fact the whole guides layer visually behaves like a normal layer. Objects that I draw on it can be assigned for example a fill.

The guides still work for snapping. Still, the look bothers me, especially since guides get thicker when zooming in (just like normal lines).

How do I get back the standard guides look?