vendor/kinetic-v5.1.0.js
function() {
            var randColor = (Math.random() * 0xFFFFFF << 0).toString(16);
            while (randColor.length < 6) {
                randColor = ZERO + randColor;
            }
            return HASH + randColor;
        }
function() {
            var randColor = (Math.random() * 0xFFFFFF << 0).toString(16);
            while (randColor.length < 6) {
                randColor = ZERO + randColor;
            }
            return HASH + randColor;
        }
function ( ) { var randColor = ( Math . random ( ) * 0xFFFFFF << 0 ) . toString ( 16 ) ; while ( randColor . length < 6 ) { randColor = ZERO + randColor ; } return HASH + randColor ; }
return random hex color
@method
@memberof Kinetic.Util.prototype
return random hex color