I understand that you cannot make a universal library where each and every device would work with. (given time and support from community, maybe).

My 4 digit CC 7-seg with AP and Colon has 12 pins.
7 for A-G segment pins (positive supply or GND)
4 for digit 0-digit 3 digit pins (negative supply)
device pin num 3 for AP and COLON (positive, of course)

I have attached a partial diagram to clarify above details. please, mind that rest of the display works fine just as a normal

CC 7-seg display.

after probing through pins, I found out
when digit 2 pin and AP/COLON pin activated, AP lights on
when digit 3 pin and AP/COLON pin activated, COLON lights on

I tried with disp.setColonPin(int colonPin).
disp.setColonPin(3);

I tried with disp.setSymbPins(int digPin, int segUCPin, int segLCPin, int segAPIN).
disp.setSymbPins(9, 3, 3, 3);

both will not turn off colon or AP as CC mode will, in off state, supply correct biasing thus turning LEDs on.

Have I missed something?
Is there any simple work around that I can use to overcome this?

I have read through included pdf guide (SevenSeg.pdf)

write(double) could be refined close to zero. On a four digit display it will now display -0.004 as 0.00 (using only three digits) leaving an open space for minus, and switch to -0.01 for -0.005. This is not incorrect, but consider showing -0.004 as -0.00.

disp.write(0.0); fails on infinite loop.

Not all useres like leading zero suppression. Considering making this optional.

https://github.com/espressif/esp-idf/blob/master/components/newlib/include/ctype.h has

#define _C 040
...
#define _B 0200

Changing to something like _b/_c or _PIN_B/_PIN_C solves the issue.

I tried on a Common Cathode single display and didn't worked :D

#include <SevenSeg.h>

SevenSeg disp (0,1,2,3,4,5,6) ;

void setup () {
  disp.setCommonCathode();
}
void loop () {
  disp.write(5) ;
}

Hello. I will like to display time (in hours and minutes) on a display but I cant figure out how the code should look. I have managed to display number on it, using the code below, but I have problems displaying time.

Can you please give me an example for how the code should look for displaying time?

#include <SevenSeg.h>
SevenSeg disp(6,7,8,9,10,11,12);
const int numOfDigits=4;
int digitPins[numOfDigits]={2,3,4,5};
void setup() {
  disp.setDigitPins(numOfDigits, digitPins);
  disp.setCommonCathode();
}  
void loop() {
    disp.write(1111);
}