function HSLColor(hue, sat, lum) {
                            this.hue = 0;
                            this.sat = 0;
                            this.lum = 0;
                            this.hue = hue;
                            this.sat = sat;
                            this.lum = lum;
                        }
@param {number} styleValue
@param {com.mxgraph.io.vsdx.mxVsdxTheme} theme
@return {com.mxgraph.io.vsdx.theme.Color}