byte clock_mode = 1;               
// Default clock mode.
// clock_mode 0 = basic mode 
// clock_mode 1 = small mode
// clock_mode 2 = slide mode
// clock_mode 3 = smallslide mode                                          
// clock_mode 4 = word clock
// clock_mode 5 = shift mode
// clock_mode 6 = setup menu

byte clock_mode = 0;