Hello there,
The main concept of the upgrade is to have a new look and theme and I guess you cannot preserve the look and feel of the older version as we can see significant theme changes from Windows 7 to Windows 10.
If you like a feature you can voice out your opinion in the feedback hub and based on the total counts the feature might be reintroduced. You can raise feedback to the Microsoft team. The Feedback Hub app lets you tell Microsoft about any problems you run into https://support.microsoft.com/en-us/windows/send-feedback-to-microsoft-with-the-feedback-hub-app-f59187f8-8739-22d6-ba93-f66612949332
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