I try to change colors and lines width in this polygon (this is SVG file):
I learn from here
SVG symbol colors differences in QGIS 2.12?
Using SVG file to fill polygon using QGIS- problem
to add this line to the SVG file in order to change colors:
fill="param(fill) #FFF" stroke="param(outline) #000" stroke-width="param(outline-width) 1"
but the option to change the fill is blocked
How can i change the fill color?