qmk_firmware/keyboards/skyloong/qk21/v1/v1.c

// Copyright 2021 JZ-Skyloong (@JZ-Skyloong)
// SPDX-License-Identifier: GPL-2.0-or-later

#include "quantum.h"

#if defined(RGB_MATRIX_ENABLE) && defined(NUM_LOCK_INDEX)

bool rgb_matrix_indicators_advanced_kb(uint8_t led_min, uint8_t led_max) {
    if (!rgb_matrix_indicators_advanced_user(led_min, led_max)) {
        return false;
    }
    // RGB_MATRIX_INDICATOR_SET_COLOR(index, red, green, blue);

    if (host_keyboard_led_state().num_lock) {
        RGB_MATRIX_INDICATOR_SET_COLOR(NUM_LOCK_INDEX, 255, 255, 255);
    } else {
        if (!rgb_matrix_get_flags()) {
            RGB_MATRIX_INDICATOR_SET_COLOR(NUM_LOCK_INDEX, 0, 0, 0);
        }
    }
    return true;
}

#endif  // NUM_LOCK_INDEX