Under Accent color , either:
On the left sidebar, click on Personalization . Select Colors: Click the Colors menu.
Under Choose your mode , select Dark .
If you're running Windows 10 or 11, you can change the taskbar color through the Settings app. Here's how:
If you have trouble seeing icons, pick a vibrant accent color that provides high contrast against your app icons.
These steps should help you change the color of the taskbar on Windows and somewhat influence it on macOS and Linux systems.
Here is how to change your taskbar color on Windows 11 and Windows 10, along with a few pro tips for advanced customization. How to Change Taskbar Color in Windows 11
This is a free, lightweight app available on the Microsoft Store. it allows you to make the taskbar completely clear, blurred, or "fluent" (acrylic).
Here’s a helpful step-by-step guide for changing the color of the taskbar in and Windows 11 .