You will notice a subtle shift between colors. Currently the screen is moving between 5 color steps.
The center color is 530nm (used in the study) RGB as given from the second link above.
There are 2 steps above (535nm & 540nm) and 2 steps below (525nm & 520nm).
If there is interest, I will add functionality:
the ability to select color stepping
fewer colors
HSL color profile
along with any good ideas...
Email me