EXTRA FUNCTION: Adjust LED gradient rainbow time?

[Bruur-vr]

Hi,

I succesfully downloaded your firmware and made a change where the LEDs now stay on and make a rainbow pattern.
I was wondering how you would make a timer function in the macropad.c file?
I seem to be able to include time.h, but I keep getting syntax errors on using clock_t ..

             if(NeoHue == 191)
              {
              NeoHue = 0;
              }
             else 
              { 
// add clock function here so LEDS transit smoother
                NeoHue += 1;
              }
              
            for (i = 0; i < 6; i += 1) // for every neopixel
              {
                NEO_writeHue(i, NeoHue, NEO_BRIGHT_KEYS);
                NEO_update();
              }