-\path[draw,-,fill=red!30] (6.5,2) -- (4.75,3) -- (4.75,1) -- (6.5,1);
-\path[draw,-,fill=blue!30] (6.5,2) -- (8.25,3) -- (8.25,1) -- (6.5,1);
+\path[red box] (5,2.75) -- (6.4,1.95) -- (6.4,1.25) -- (5,1.25) -- cycle;
+\path[blue box] (6.6,1.95) -- (8,2.75) -- (8,1.25) -- (6.6,1.25) -- cycle;