interference(6x) on Linux
The text 0211956f8b21, as Debian 10 (Buster) shipped it.
decaying sinusoidal waves
Flags it lists
-
-color-shift -
-count -
-db -
-delay -
-fps -
-gridsize -
-hue -
-ncolors -
-no-db -
-radius -
-root -
-speed -
-visual -
-window