[Qgis-developer] symbol levels in rule-based rendering

[Borys Jurgiel]

> The only downside I see here is that the symbols which are going to be
> use the effect of overpainting - like the roads with outlines - have
> to be split to bottom and top layer and applied in two different
> styles. But I think that is a relatively low price given the
> advantages. Finally, there are not that many symbols that would need
> this effect.

I don't find it as a usability problem. The present symbology is unusable 
unless you understand symbol levels, and the "sld" approach is as 
simple/complicated as the present one. And is of course more flexible. 

+1 for compatiblity with the way SLD chose.