cocoon Swallowtail

Last week I noticed that the cocoon of the Swallowtail (Koninginnepage) I had saved last year. had changed color!
You can now see the yellow shining through.
(these are the new wings of the butterfly shining through)

See also the full story of last year to read more about it
I knew then, that it would take only one or two days,
that the butterfly would come out...!

Help that would be a little too soon!
or....?
maybe butterflies know exactly the right time to come out.