[Hippie3]

correct,
but the open window is that fact that some cubies are almost white anyway.
but playing with albinism will never give normal white fruit
since albinism is a symptom of damaged DNA.
albino shrooms lack the required gene to make pigment,
and if one gene is bad
odds are pretty good
other genes are also negatively impacted,
such as [perhaps] spore production.
so it seems to me that what one really wants
is a normal [DNA-wise] pigmented strain
that expresses minimal pigmentation-
it has the capability but doesn't use/make
enough pigment to notice.
the gene is present and normal
but it just expresses itself as white,
that would allow normal sporulation.
again, all speculation on my part.