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:
<path sodipodi:type="arc" style="fill:#ffffff;fill-opacity:1;stroke:#000000;stroke-width:1.01988637;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
I modified it into:
<path sodipodi:type="arc" style="fill:param(fill) #ffffff;fill-opacity:1;stroke:param(outline) #000000;stroke-width:param(stroke-width) 1.01988637;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
Saved as circle_modified.svg and selected it as point symbol, but Qgis couldn't change all three parameters at the same time.
What did I do wrong or should do differently?
My system: Qgis 1.8.0 on Ubuntu 12.04 64 bit, Inkscape 0.48, Gedit 3.4.1 text editor.