Hi Amurpk. I'm Greg, 10 years awarded MVP, here to help you.
There are some solutions that might help here:
https://superuser.com/questions/1558106/color-o...
https://superuser.com/questions/1717690/make-ac...
https://answers.microsoft.com/en-us/windows/for...
Here is how to get color back on the taskbar, window frames and start menu after Version 1903 inexplicably turned them dull grey:
https://answers.microsoft.com/en-us/windows/for...
If none of these suffice then to express your opinion this using the Feedback Hub in Start Menu you may be able to help Microsoft improve this product/experience. Developers DO read feedback from customers that comes in via the Feedback Hub, so that is a great way to share your thoughts on how to better serve you as a customer.
Feel free to ask back any questions. Based on the results you post back I may have other suggestions if necessary.
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