As a woman in tech, it's actually the discussions surrounding this proposal that I find most telling. The use of Lena is a waterline. Most women (my personal standpoint bias) probably find it inoffensive at face value, and vaguely grating when they learn that it's a centerfold. It's a reminder of a time when porn in the workplace was rather common; one component of a baseline of inescapable sexual harrassment.

We've made progress, and sexual harrassment is less socially acceptable now. Some of us would like to erase that waterline, because it's a reminder of an ugly past. But what of the people, mostly men, who cling furiously to using that image? They make me uncomfortable, because it's an indicator of where they stand on pervasive sexual harrassment.

Unlike changing terms like master/slave etc, this is a zero-cost proposal (where those are very nearly zero themselves, but more pervasive). Replace the image with something that's got high contrast and color variation. I'd say you can even keep the old name so it won't impact your tooling.