New WhatsApp for Android update adds this new feature for beta users
Oct. 18, 2019
Wabetainfo reports that the Facebook-owned app has rolled out the new update for Android users and that the Dark Splash screen will be visible only after the Dark theme feature is released. The report, however, also suggests that a bug might let users get the Dark Splash screen, even if the Dark theme is not enabled. The issue is reported to make the bubbles dark, sometimes.
The Dark Splash screen feature will be made available once the company ensures there aren't any glitches in the dark mode.
Now this new Splash screen feature which has been added in Android beta version will most likely be made available for both Android and iOS end-users in future.