... you can share all the colors of your thoughts.

That's Tsuyu-Kusa — Dayflower Blue — ink I bought for my beautiful Pelikan pen. Those are Amazon Associates links, which empower you to support this blog while buying things that you want for yourself. If you don't like that ink (or the many other colors at that link) and don't want that pen, please consider using the Althouse Portal to Amazon whenever you're buying something that you do want.