creating a library - general help needed

#define max_chanels        15                 // 3x RGBWW
#define max_programs       15                 // should be at least max_chanels
#define max_events         100                // max. changes per day
...
#define max_nameLength     12                 // maximum length of program name
...
class cEvent
{
  public:
    long   time;                              // timestamp | milliseconds until 00:00
    byte   bright;                            // brightness | 0-255
};

class cProgram
{
  public:
    char       name[max_nameLength];
    cEvent     arrEvents[max_events];
    int        SizeArrEvent;                  // size of the array arrEvents
};
...

cProgram  arrPrograms[max_programs];          // array of all possible programs
cProgram  arrTmpProg[max_chanels];            // array of temporary programs for each chanel

That's 9420 bytes of RAM gone right there. What Arduino are you planning to run this on?