class BackButton extends RoundRectButton {

	constructor(clickEvent) {
		let setting = new RoundRectButtonSetting(30, 30, 50, 50);
		setting.fontStyle.boundsAlignH = "center";	// left, center. right
		setting.fontStyle.boundsAlignV = "middle";	// top, middle, bottom
		setting.strokeWidthPx = 3;
		setting.setStrokeColor(
			0xaa6666,
			0x884444,
			0x884444,
			0x333333
		);
		setting.setButtonColor(
			0xffdddd,
			0xddaaaa,
			0xddaaaa,
			0x666666
		);
		setting.setTextColor(
			"#a66",
			"#844",
			"#844",
			"#333"
		);

		super(setting, RoundRectButton.NONE_ICON, "<", clickEvent);
	}

}