So we have https://code.launchpad.net/~cimi/unity8/fix-1393008/+merge/246138 on vivid (not on rtm-09) which adds the possibility of having backgrounds on some more card types than before, my guess is that the news scope used to specify a white background and we just ignored it and now we don't anymore.
If i'm right this has to be fixed on the scope level and not in unity8
So we have https:/ /code.launchpad .net/~cimi/ unity8/ fix-1393008/ +merge/ 246138 on vivid (not on rtm-09) which adds the possibility of having backgrounds on some more card types than before, my guess is that the news scope used to specify a white background and we just ignored it and now we don't anymore.
If i'm right this has to be fixed on the scope level and not in unity8