please change icon flag for vietnam

[PhamNgocPhi]

hey, can you change icon flag vietnam,
Vietnamese flags are darker red than the present, like this: https://www.countryflags.com/en/vietnam-flag-icon.html
thanks

[hbb20]

Thank you for reporting. We just released new version v2.3.0 with the correct flag. Please check and let us know if it does not work as expected.