public static boolean isAvailable() {
    if (!JBR.isRoundedCornersManagerSupported()) {
      return false;
    }
    if (!ExperimentalUI.isNewUI() || !Registry.is("ide.popup.rounded.corners", true)) {
      return false;
    }
    if (SystemInfoRt.isWindows) {
      Long buildNumber = SystemInfo.getWinBuildNumber();
      return buildNumber != null && buildNumber.longValue() >= 22000; // Windows 11 only
    }
    return true;
  }
public static boolean isAvailable()