There are 3 choices for the color. Default is a single color green at 530nm (used in the study.) The second Gradient Middle will add two color steps above (535nm & 540nm) and two color steps below (525nm & 520nm) the default. The third option Darker Greens will add four color steps above the default until full green. If there is interest, I will add functionality: The ability to select color stepping HSL color profile along with any good ideas... Email me
F for full screen C for gradient selection
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