i3-config

                                                                  
                                                                                 
mode "curses" {                                                                  
    bindsym F3 mode "default"                                                    
    bindsym Escape mode "default"                                                
}                                                                                
                                                                                 
mode "default" {                                                                 
    bindsym F1 exec njr-browser                                                  
    bindsym F2 exec i3-sensible-terminal                                         
    bindsym F3 mode "curses"                                                     
    bindsym F12 exec njr-backlight                                               
}