Margins

// margin: [left, top, right, bottom]
{ text: 'sample', margin: [ 5, 2, 10, 20 ] },

// margin: [horizontal, vertical]
{ text: 'another text', margin: [5, 2] },

// margin: equalLeftTopRightBottom
{ text: 'last one', margin: 5 }

// single-side margins
{ text: 'sample', marginLeft: 5, marginTop: 2, marginRight: 10, marginBottom: 2 },