UserCP 
These are unique Style Variables for the Setting or User Control Panel Pages.
NameDescription
usercp_hr_seperatorThis stylevar controls the line between private message/subscription folders and the other private message/subscription links in the navigation column in the setting pages.
usercp_nav_blockbody_backgroundThis stylevar controls the background of the block body in the navigation column in the setting pages.
usercp_nav_blockbody_borderThis stylevar controls the border of the block body in the navigation column in the setting pages.
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