-Predefined color schemes are named I<whites> and I<fire>,
-or I<greys> and I<fire256> for 256-color variants.
+A non-numeric name can refer to a predefined color scheme:
+
+=over 8
+
+=item B<whites>
+
+Minimal set of monochrome brightnesses.
+
+=item B<grays>
+
+Utilize the 24 grayscale ramp in 256-color terminals.
+
+=item B<fire>
+
+Gradient red to white in 7 out of 16 colors.
+
+=item B<fire256>
+
+Extended to 17 colors out of 256.
+
+=item B<rainbow>
+
+Saturated red to green to blue to red.
+
+=item B<random>
+
+All 215 extended colors in unrelated orders.
+
+=back