Add: BasicTab, TabSetting

src/game/lib/flat_button/back_button.js

@@ -20,6 +20,12 @@ function BackButton(clickEvent) {
 		BackButton.BUTTON_COLOR_DOWN_HEX,
 		BackButton.BUTTON_COLOR_DISABLED_HEX
 	);
+	setting.setIconColor(
+		BackButton.STROKE_COLOR_OUT_HEX,
+		BackButton.STROKE_COLOR_OVER_HEX,
+		BackButton.STROKE_COLOR_DOWN_HEX,
+		BackButton.STROKE_COLOR_DISABLED_HEX
+	);
 	setting.setTextColor(
 		BackButton.TEXT_COLOR_OUT_HEX,
 		BackButton.TEXT_COLOR_OVER_HEX,