Step 1-
Download Wallpaper.
Set wallpaper as Background.
Step 2-
Open Settings and Click on "Personalize".
Change the Color settings as Follows-
1. Theme --- Light Theme
2. Select --- "Automatically pick an accent color from background."
(Or)
Use the colour code - "2959CC"
Step 3-
Go to Taskbar and Change Taskbar Location --- "Top/Bottom"
That's all.....Hope you Like it.