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CCS is not highlighting some function calls in my code

Hi there,

Why don't my UARTprintf and UARTStdioInit functions appear in a different colour to indicate they are function calls ?  printf does.   In the editor I can right click on those two functions and open their declaration OK.   The code also builds OK and debugs/runs fine.

#include "utils/uartstdio.h"
#include "inc/hw_types.h"
#include "inc/hw_memmap.h"
#include "driverlib/fpu.h"
#include "driverlib/sysctl.h"
#include "driverlib/rom.h"
#include "driverlib/pin_map.h"
#include "grlib/grlib.h"
#include "drivers/cfal96x64x16.h"
#include "utils/uartstdio.h"
#include "driverlib/gpio.h"
#include "stdlib.h"
#include <stdio.h>
 
void main(void) {
    printf("Hello World!\n");
// Some Function calls to Initialise the UART are not shown to reduce clutter
    UARTStdioInit(0);
//Print out to the UART
    UARTprintf("Hello world!\n");
}