Hi Grasa,
Good luck with your unknown purple. It looks very interesting.
I came late to both this thread and the current thread that you posted . After looking at the photos of the figs, I had the same thoughts that we might be looking at "OLYMPIAN" figs. The Washington State location, and coloration of the figs is similar... "Olympian" is also described as a large fig, and any published photos show figs with a striped, purple-greenish coloration. Although, your cut fig's interior shows no tendency towards the reddish-violet interior of Olympian, it is possibly because the ripe fig needed some sunny heat, and a few more days on the tree to reach perfection.
Grasa...The photos of the OLYMPIAN figs that Calvin posted (post #18) show immature main-crop figs, and honestly, I see a similarity. Since no one has yet posted photos of their Olympian breba/main-crop figs is there any possibility that your tree could be Olympian?
If possible could you post photos of some leaves and main-crop figs, at various stages of development? This may help with the identification of your unknown. The same fig varieties can look different when grown in different locations, and with different cultural conditions.
Thank you for starting both interesting threads.
Frank