I have been able to change the background color after installing the updates by changing
Tool / Options / Environment / Text Editor / Highlight Current Line (Active
You can make the border go away by going to
Tools > Options... > Environment > Fonts and Colors > Show settings for: Text Editor > Display items: Highlight Current Line (Active) / (Inactive)
In order to change border color you should change the setting "Item foreground" for both of them. You can choose any background color also, but there seems to be no way to change the width.