This is probably due to the lack of "linked.vertical button" definition in Ubuntu theme CSS. Adwaita keeps the two button separated, if this solution is OK, this is what it'd look like in Ambiance
** Attachment added: "proposal picture" https://bugs.launchpad.net/ubuntu/+source/ubuntu-themes/+bug/1708141/+attachment/4930643/+files/gnome-maps-vertical-linked-buttons.png -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to ubuntu-themes in Ubuntu. https://bugs.launchpad.net/bugs/1708141 Title: Vertically linked button borders incorrect in Ambiance Status in ubuntu-themes package in Ubuntu: Triaged Bug description: GNOME Maps has vertically linked buttons for zoom control. Looks fine with Adwaita, but with Ambiance the border doesn't align when joined vertically. See attached screenshots. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-themes/+bug/1708141/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
