Tap on the profile icon located at the top left corner of the screen.

Select "Settings" at the bottom of the navigation bar.

Choose "Display, Languages & Media Quality."

Select "Display." Here, you can manage your font size, colors, and background.

Under the "Themes" section, you have the freedom to choose from four themes: red, orange, green, and purple. Choose the theme that best suits your preference to give your profile a unique look and feel.

You can change your theme at any time. If you wish to switch themes again, simply repeat the same steps mentioned above for quick and easy customization.