You can switch to the dark theme and change the background on which the SmartBox and Tableau appear in new tabs.
Dark theme
By default, Yandex Browser elements (like tabs and the SmartBox) are displayed on a light background. To change your Yandex Browser theme:
Tap → Settings → Theme.
Select one of the options:
Always dark
Always light
Dark theme for yandex.com
You can enable the dark theme for the Yandex Home page, search results, and services:
In the Home page settings
On the settings page, go to General → External appearance and select Always dark.
In the search results
Note
To select the theme for search result pages, log in with your Yandex ID.
Scroll up the search results page.
In the top-right corner, tap your profile picture.
Tap Appearance → Always dark.
Yandex Browser background
You can use images as the background:
From the Background gallery
Tap → Background gallery.
Select an image from an album and tap Apply.
From your tablet
Tap → Background gallery.
Tap Upload from device.
Select the app to open the images with (if you don't have a default app for this file type).
Select an image.
Interface language
You can change the language of your Yandex Browser interface.
In Yandex Browser
Tap → Settings.
Tap App language.
Disable the Auto detect option.
Select a language.
In the device settings
Note
Mobile device manufacturers can change the Android interface. The instructions are for Androids without modifications.
Open your device settings.
Tap System → Languages & input → Languages.
Select a language.
Alert
If the browser doesn't support the language you selected, the interface is in English.
FAQ
I changed the theme in the browser settings, but the yandex.com theme hasn't changed
The appearance of the Yandex Home page, search results, and services isn't linked to Yandex Browser. To make the yandex.com theme match the one in Yandex Browser, select the System settings option in the home page settings.
The yandex.com theme hasn't changed
If the home page theme hasn't changed after you selected System settings for the home page appearance, you might have selected a light or dark theme in the browser settings.