qix(6x) on Linux
The text 03bd544be5bd, as Debian 9 (Stretch) shipped it.
bounce colored lines around a window
Flags it lists
-
-additive -
-color-shift -
-count -
-delay -
-fps -
-gravity -
-hollow -
-install -
-linear -
-mono -
-no-gravity -
-non-transparent -
-poly -
-random -
-root -
-segments -
-size -
-solid -
-spread -
-subtractive -
-transparent -
-visual -
-window -
-xor