Previous Vivaldi snapshot allowed to hide extension icons, today released Vivaldi 1.7.721.3 snapshot has improved the browser screenshot feature by offering the option –copy to clipboard– to copy the captured image to the clipboard. Apart from this improvement, Vivaldi team has added support for displaying the tree structure for bookmarks while searching. To try this, visit Vivaldi > Settings > Bookmarks, check ‘Show Tree Structure During Search‘.
You can download Vivaldi 1.7.721.3 from here.