{                        
0,1,2;3,-1,         'Square face with the edge between vertices 1 and 2 drawn
				'with the highlight edge colour    
4,5\6,7,-1,         'Square face with a cylinder on the edge between vertices 5 
				'and 6. 
0,1,5,4\-1,          'Square face with a cylinder on the edge between vertices 0 
				'and 4. 
1,2,6,5,-1, 
2,3,7,6,-1, 
3,0,4,7,-1, 
}                   
