The other day, I noticed a tiny little Amiga gadget detail that had escaped me for 40 years. Today, for totally normal reasons, I was implementing a JavaScript routine that draws these very window gadgets. Turns out there’s another thing I haven’t spotted, ever:

The rectangles representing “this window” (white) and “the other window” (black) have different sizes! I guess that was deliberate, for reasons of optical harmony.

Yup, “fixing” that box to be the same size as the others looks weird, too:

But why wasn’t the horizontal retangle size increased as well? The white box with the background-colored outline looks so much narrower than its black counterpart! Anyway, Kickstart versions 2.0 and later sure did the right thing by abandoning the concept of two separate depth gadgets altogether.