The Wikipedia page (link below) contains sample programs for controlling all RGB LEDs simultaneously. You can modify the program to control each RGB LED individually.

https://www.elecrow.com/wiki/CrowPanel_1.28inch-HMI_ESP32_Rotary_Display.html

https://www.elecrow.com/wiki/CrowPanel_1.28inch-HMI_ESP32_Rotary_Display_Arduino_lesson1.html

include <Adafruit_NeoPixel.h>

define LED_PIN 48

define LED_NUM 5

Adafruit_NeoPixel strip(LED_NUM, LED_PIN, NEO_GRB + NEO_KHZ800);

void setup() {
strip.begin();

strip.setBrightness(50); // Moderate brightness

strip.show(); // Initialize to off

}
void loop() {

// Set the color of each LED individually

strip.setPixelColor(0, strip.Color(255, 0, 0)); // LED0 = Red

`strip.setPixelColor(1, strip.Color(0, 255, 0)); // LED1 = Green

strip.setPixelColor(2, strip.Color(0, 0, 255)); // LED2 = Blue

strip.setPixelColor(3, strip.Color(255, 255, 0)); // LED3 = Yellow

strip.setPixelColor(4, strip.Color(255, 0, 255)); // LED4 = Purple

strip.show(); // Send data to all LEDs at once

delay(2000);

/ Change the color of each LED (again, control them individually)

strip.setPixelColor(0, strip.Color(0, 255, 255)); // Cyan

strip.setPixelColor(1, strip.Color(255, 0, 0)); // Red

strip.setPixelColor(2, strip.Color(255, 255, 255)); // White` strip.setPixelColor(3, strip.Color(0, 0, 0)); // off
strip.setPixelColor(4, strip.Color(0, 128, 255)); // light blue

strip.show();

delay(2000);
}