I want to create some svg symbols for Qgis using Inkscape, those symbols must have attributes as described in the question. For the last two days, I have been experimenting as instructed by Sourcepole and mimicked some symbols came bundled with qgis that have desired attributes without any success.
Finally I experimented with the simplest form of symbol: I created an svg that contains only a circle in Inkscape and tried to modify it.
The original file (circle.svg) have this line:
Finally I experimented with the simplest form of symbol: I created an svg that contains only a circle in Inkscape and tried to modify it.
The original file (circle.svg) have this line: