This can be done through the personalization window available from your settings. The very first thing you need to do is enable the transparency setting in your system itself.

Guide to enable and change your taskbar’s transparency Method 1: Turn on transparency from your system settings Let’s get right into learning how you can turn on taskbar transparency, tweak transparency settings, or download a third-party app to help. We’ve compiled the steps necessary to do this in our article below - even if you’re new to the operating system, you can make the changes within a few minutes. If you want to make the taskbar more transparent in Windows 10, you can easily do it from the system or a third-party app. Beyond changing its color tint and turning transparency on and off, there isn’t anything you can change to make your taskbar appeal more to what you want. Many users have noticed that amongst these options, there’s no way to personalize the look of your taskbar. Windows 10 comes with a variety of options to customize how your system looks.