component transfer issue
The component transfer filter primitive seems to have a bit of inaccuracy at the rendering.
Using it as a base for a threshold filter, the discrete mode input doesn't chop the luminance levels at 50% when it is set to 0 1, or when linear input is chosen with 10; -5 settings.
Have a look at this simpe test file:
It shows several errors in one file.
0.91 renders the filter with a solid fill on the right.
Zooming into the top right corner of the image
-pattern fill does not render after zooming in more than 3200%
-checkerboard background does not render from 9051%
-filtered object's part intended to be transparent renders solid black at 12800%
-at any zoom level the diagonal step in the fill from the filter doesn't go straight into the square's corner as it should.
Tested on win 10 64bit Inkscape 0.92pre3 15195.
removed: alpha component compositing filter renderer transfer