Windows Explorer looks boring now cause we see it very often. To change its appearance there is no need to use any other software and can be done manually. This function is made to support themes but also can be used well manually. First go to desktop and right click. Select Personalisation.
The menu will appear. Below select the option Window color which is highlighted in the image.
Select the advanced settings option which is marked red in the image. Then a dialog box appears as shown above.
You can change the colours freely and don't be afraid of restoring them cause its easy. Some windows are shown as example in the window.
After what you have done apply it and close the box.
I modified it myself a little which might be not so good but its given below.
The final result will be great to see[ if you did it properly] The one I have did is shown below
If you want to restore the previous one then just go to personalise menu and apply any theme in it......