Help on themes                  
                                
                                
 The possible themes are :      
                                
            _none_              
                                
            amiga               
            aws-orange          
                                
            black-knight        
            bluegray            
                                
            blueprint           
                                
            carbon-gray         
            cerulean            
                                
            cerulean-outline    
            cloudscape-design   
                                
            crt-amber           
                                
            crt-green           
            cyborg              
                                
            cyborg-outline      
            hacker              
                                
            lightgray           
                                
            mars                
            materia             
                                
            materia-outline     
            metal               
                                
            mimeograph          
                                
            minty               
            mono                
                                
            plain               
            reddress-darkblue   
                                
            reddress-darkgreen  
                                
            reddress-darkorange 
            reddress-darkred    
                                
            reddress-lightblue  
            reddress-lightgreen 
                                
            reddress-lightorange
                                
            reddress-lightred   
            sandstone           
                                
            silver              
            sketchy             
                                
            sketchy-outline     
                                
            spacelab            
            spacelab-white      
                                
            sunlust             
            superhero           
                                
            superhero-outline   
                                
            toy                 
            united              
                                
            vibrant