The same filters without sharpness (to remove sharpness, change the two last numbers in the last Color matrix to 1 and 0 instead of 6 and -2) ; notice the transparency which is so interesting for use in Xara.
In the second one (Alpha fill) the Composite primitive is set to "out" and in the third one it's set to "in".
Just one little problem at the moment : these two latest filters which use a Convolve matrix primitive give their best results at 96 dpi only because some work remains to do to make this primitive resolution independent. However this kind of filter always works better with high resolution images and thus this isn't a true limitation ; import them at their original size in Inkscape, apply the filter and export at 96 dpi, then open the result in Xara and resize it.
Enjoy !
ivan
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