Rumba takes full advantage of the GUI capabilities of Windows to offer these features: 
               
            
 
            
             
               
               - Support of alternate screen sizes, adjusting the host application to fit within the window. 
                  
               
- Simultaneous display of applications in a variety of screen sizes without reconfiguring your PC software or modifying the
                  host application. 
                  
               
- Customization of screen color schemes for existing host applications. 
                  
               
Note: Rumba Mainframe Edition supports alternate screen sizes for IBM models 2, 3, 4, and 5.