Why the messages icon in Huawei P20 does not updates whenI apply any theme?

[Android Central Question]

When I download any theme from Themes apllication and apply it in my phone, all icons changes except messages icon. I have tried many themes which should change messages icon but now success till now. Maybe soneone has faced the same issue and could offer me a solution? Thanks.

 

[doohsun]

use a different launcher that should correct that issue.