A filter plug-in's live preview runs on a reduced copy of a large
document, but its params only went through the built-in name list, so a
pixel length with another name (Chromatic Aberration's Amount) previewed
2-4 times too large, and a unitless `size` or `radius` was divided.
number and int params now take an optional "unit" ("px" or "none", the
default; anything else is a manifest error). The preview divides px
params by the reduction (defaults included, ints rounded, kept in range)
and limits the factor so a px param with a positive minimum never drops
below it. Unitless params are never scaled.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
