Function checkIsColorData

docs/tests/v2/es6/js/sanddance.js:147813–147821

(data, column)

}

function checkIsColorData(data, column) {
  for (let i = 0; i < data.length; i++) {
    if (!VegaDeckGl.util.isColor(data[i][column.name])) {
      return;
    }
  }

  column.isColorData = true;
}

function getStats(data, column) {
  const distinctMap = {};