Whether you switch between light and dark modes on your computer manually or you’ve set up a schedule to switch between them automatically, you can select different Vivaldi Themes for both operating system’s light and dark modes.
To assign themes for light and dark modes:
On macOS, Vivaldi browser’s main menu is baked into the operating system, but on Windows and Linux you can access the main menu from the 
icon in the top left corner of the browser window.
If you wish, you can replace the Vivaldi icon with a more generic, so-called “Hamburger”, ☰ menu icon. To do that:
The Start Page is a gateway to the web, showcasing all your favorite bookmarks – Speed Dials. Learn how to jazz it up with a cool wallpaper. ✨
Here’s how to set a custom wallpaper on Android:
Vivaldi 6.7 introduced a new design to the browser’s main and context menus. Among other changes, each menu item is given more space (great for when your screen supports touch interactions). If you prefer the previous design, you can enable it with a quick setting change.
To enable compact menus:
The Start Page is a gateway to the web, showcasing all your favorite bookmarks, Speed Dials. So, why should you be restricted to a plain startup page with limited functionality and design?
Here’s how to set a custom wallpaper on iOS:
When you scroll down on a page in Vivaldi’s Android app, the Tab Bar, Address Bar and bottom toolbar will be hidden automatically to free up screen real estate on the mobile devices’ smaller screen. When you scroll up, the toolbars will be displayed again.
If you’d rather keep the toolbars visible at all times:
Vivaldi menu > Settings > Appearance.On macOS, Vivaldi’s main menu is always fully visible. On Windows and Linux, by default, the main menu can be accessed by clicking on the little Vivaldi logo in the top left corner of the window. But it can also be displayed in full on the top edge of the browser window.
To display the horizontal menu:
Alternatively, toggle horizontal menu’s visibility from Vivaldi menu > View > Horizontal Main Menu.
When browsing themes.vivaldi.net for new Themes for your desktop Vivaldi browser, you can get a live preview of the theme by clicking “Download theme”.
Then you have 1 minute to see how the theme looks. Make sure to check the Start Page to see how the awesome background image looks behind your Speed Dials. Other places where the user interface colours are clearly visible are Panels, Settings, Mail, etc.
When you’re satisfied with the theme, click “Install” in the pop-up to add the theme to your Theme Library. If it’s not really what you were looking for, click “Cancel” or let the preview time run out.
