Hey there, I've noticed the following property are missing some values that are expected for SVG 1.1
text-rendering is missing "geometricPrecision"
shape-rendering is missing "crispEdges" and "geometricPrecision"
color-interpolation is missing "linearRGB"
display is missing "marker" and "compact"
font-family won't parse quoted names (e.g. 'Arial Unicode MS')
There may be some more while I'm still investigating
I can make a PR for these if these changes are wanted