@mwichary Interesting. I didn’t pick up on the “breathing” aspect but I recall that the slow pulsing was quite soothing. It was also useful and usable: it conveyed information if you looked at it, without attracting attention to itself.By contrast, many things (like cursors) blink too fast for my taste, saying “Hurry up and type something!” Even a non-blinking red LED, like on a TV in a darkened hotel room, is too harsh. I carry a roll of gaffer tape in my travel kit for such situations.