For the record, the latest update (4ee0c33cdc3b655fb6bdf1171e51596f8ea024ea) changed the behavior of Delboeuf illusion to prevent an artifact where the difficulty at illusion strength of 0 is easier than it should due to the presence of the outlines that make the difference easier to spot
For the record, the latest update (4ee0c33cdc3b655fb6bdf1171e51596f8ea024ea) changed the behavior of Delboeuf illusion to prevent an artifact where the difficulty at illusion strength of 0 is easier than it should due to the presence of the outlines that make the difference easier to spot
Past behavior:
New behavior: