code: function toRgba(color, opacity = false) {
  	color = tinycolor(color);
  
  	if (opacity) {
  		color.setAlpha(calcOpacity(opacity));
  	}
  
  	return color.toRgbString();
  }
docs: Convert color values to RGBa
  
  @param  {string}  color
  @param  {string|boolean} opacity
  @return {string}