Ta-da!

After washing:

Don't look too closely at the imperfect intarsia - I am sure E won't notice! The flag is a teeny bit dingy, from the black, but did not run like I had feared. i.e., the white did not turn pink in some places and blue in others.

Notes: I used hot tap water. I should have boiled some water to add, as my hot tap water only measured to be 115 degrees F, not 140 as the bottle says. I used the method of soaking (in a little Rubbermaid) for 20 minutes. I had to weight the sweater down by putting mugs full of water on top of the sweater. I then dried it in the dryer. Then the next day, washed it with my darks (cold water). This now counts as a Finished Object - whew!