WABeta Info said, “Whatsapp is already testing the all new dark mode in the app, but we have a short and straightforward way to get some of the dark mode features beforehand, so without wasting time lets get started.”
Step 1: Open Whatsapp on your Phone.
Step 2: Click on the three dotted icons on the top right corner.
Step 3: You will see many options, but you need to select Settings.
Step 4: Once you are in settings, click on the Chats icon.
Step 5: Select Wallpaper Option from the options below.
Step 6: From the different options of choosing wallpaper, select Solid Colors
Step 7: Select the first color, which is solid black, and you are good to go.