in rico.js [930:947]
_marginSize: function(n) {
if ( this._isTransparent() )
return 0;
var marginSizes = [ 5, 3, 2, 1 ];
var blendedMarginSizes = [ 3, 2, 1, 0 ];
var compactMarginSizes = [ 2, 1 ];
var smBlendedMarginSizes = [ 1, 0 ];
if ( this.options.compact && this.options.blend )
return smBlendedMarginSizes[n];
else if ( this.options.compact )
return compactMarginSizes[n];
else if ( this.options.blend )
return blendedMarginSizes[n];
else
return marginSizes[n];
},