Setting alternate color in $Table Rows

I would like to add the backGroundColor of the rows using the array so we can use the alternate row color for marking stuff and items in a very useful way.

const myTableData = [
  {"name": "A", "num": 45, "#ffffff"},
  {"name": "B", "num": 34, "#00ffff"},
  {"name": "C", "num": 19, "#ffffff"},
  {"name": "D", "num": 59, "#00ffff"},
  {"name": "E", "num": 24, "#00ffff"},
  {"name": "F", "num": 96, "#ffffff"}
];

And by setting that in the columns array the system would know to use it properly.

$w("#myTable").columns = [
  {
    "id": "col1",
    "dataPath": "field1",
    "label": "Field 1",
    "width": 100,
    "visible": true,
    "type": "string",
    "linkPath": "link-field-or-property"
  },
  {
    "id": "col2",
    "dataPath": "field2",
    "label": "Field 2",
    "width": 100,
    "visible": true,
    "type": "image",
    "linkPath": "link-field-or-property"
  },
  {
    "id": "col3",
    "dataPath": "field3",
    "label": "Field 3",
    "width": 100,
    "visible": true,
    "type": "number",
    "linkPath": "link-field-or-property"
  }, 
  { 
    "id": "col4", 
    "dataPath": "field4", 
    "label": "Field 4", 
    "width": 100, 
    "visible": true, 
    "type": "rowBackGroundColor", // This does it
    "linkPath": "link-field-or-property",
  }
];