There is bug (this is very old bug) with syntax highlighting for "No / Matching Brace". You can change it, but with each opened editor or after C::B restart - the highlighting (for braces) will be as in "Default" colour's scheme. You had to open "Editor/Syntax highlighting", change anything, press OK to restore correct colouring.
ps I'm using fresh svn9858 build, Ubuntu 14.04. Built by Damien Moore.