The command GraySpread generates a list of evenly spaced gray. The input color will be included in the middle of the list.

If the input color is not a shade of gray, it will be converted to gray using its luma value.

$\mathrm{with}\left(\mathrm{ColorTools}\right)\:$

$\mathrm{GraySpread}\left(\mathrm{Color}\left(''Gray''\right)\right)$

$\left[⟨RGB\; :\; 0.169\; 0.169\; 0.169⟩\,⟨RGB\; :\; 0.335\; 0.335\; 0.335⟩\,⟨RGB\; :\; 0.502\; 0.502\; 0.502⟩\,⟨RGB\; :\; 0.669\; 0.669\; 0.669⟩\,⟨RGB\; :\; 0.835\; 0.835\; 0.835⟩\right]$

$\mathrm{spread}≔\mathrm{GraySpread}\left(''Black''\,11\,\frac{1}{12}\right)$

$\mathrm{spread}≔\left[⟨RGB\; :\; 0.75\; 0.75\; 0.75⟩\,⟨RGB\; :\; 0.583\; 0.583\; 0.583⟩\,⟨RGB\; :\; 0.417\; 0.417\; 0.417⟩\,⟨RGB\; :\; 0.25\; 0.25\; 0.25⟩\,⟨RGB\; :\; 0.0833\; 0.0833\; 0.0833⟩\,⟨RGB\; :\; 0\; 0\; 0⟩\,⟨RGB\; :\; 0.167\; 0.167\; 0.167⟩\,⟨RGB\; :\; 0.333\; 0.333\; 0.333⟩\,⟨RGB\; :\; 0.5\; 0.5\; 0.5⟩\,⟨RGB\; :\; 0.667\; 0.667\; 0.667⟩\,⟨RGB\; :\; 0.833\; 0.833\; 0.833⟩\right]$

The ColorTools[GraySpread] command was introduced in Maple 16.

For more information on Maple 16 changes, see Updates in Maple 16.