Speed 600. Power 40. 270 LPI
Pay no mind to the white streaks in the background. That’s the black stool I set it on.
Very nice ornament! 
LOL. I was just wondering about this after seeing the Apple trackpad etch. Wondered if I could do my screen protector and whether it would interfere with the touch sensitivity. Hadn’t thought of constraing the design to the corners.
The etch is quite rough. I would think of doing it anywhere but the corners.