When the deconstruction planner generates it's 1-4 icon based on the filter contents it ignores the quality in the preview.
The expected behavior would be that if the comparator equals "=" (pun intended) it'll show that quality,
when using any of the other arrows the behavior remains undefined since you cannot include those manually either.
[boskid][2.0.32] deconstruction planner auto-icon ignores quality
Re: [2.0.32] deconstruction planner auto-icon ignores quality
Thanks for the report. Issue is now fixed for 2.0.42.