overlap: .25; inner-space: 3; color-func: lighten; color-dir: out; max: 7; min: 4

overlap: .1; inner-space: 3; colors; color-sec/ter/qua max: 3; min: .5

col-change: 25; max: 7; min: 2

bg-color; bg-padding: width/2; shadow 0 0 2rem 2rem

color-sec