(LEFT: from announcement; RIGHT: my photo)
I thought it was cool so I copied it.
I added a preset to the LED Matrix control webapp (a fork of it), so you can load it too! Just go to https://jpadgett314.github.io/dotmatrixtool/, connect your modules and select the “Logo Left/Right” presets! (Firefox not supported unfortunately).
This fork also adds grayscale editing. Try the “Pen Brightness” slider!