Issue is not in unico, neither Gtk+, but in the themes. With updated Gtk+ 3.x, widgets must specify or inherit background colors, otherwise theming engines (unico or gtk default theming engine) won't render the background (cause the default background color is NULL, indeed).
All themes, like lubuntu or light-themes, must add a line like: background-color: @bg_color; ...n the widgets which are affected by this black background, because this black background means background-color is currently unset. Set it to a color and unico or gtk+ will render with the background-color, black gone. Cheers -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gtk+3.0 in Ubuntu. https://bugs.launchpad.net/bugs/943682 Title: missing background theme definition Status in “lubuntu-artwork” package in Ubuntu: Confirmed Bug description: Maybe not the right place, and possibly a duplicated bug, this: https://bugs.launchpad.net/ubuntu/+source/lubuntu-artwork/+bug/938472 But now, since last update, Unico based themes show weird colours, dialogs are black and this make apps unreadable. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lubuntu-artwork/+bug/943682/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp