ESP32C6 initial firmware identify

[artisan]

Hi all !

Just making first steps with ESP32C6 and zigbee.

Got a board from Aliexpress said as "ESP32C6 mini", but cannot match an initial program in it with sample code from ESP.
Initial program flashed in it is some sort of blinker, but not just toggle LED on and off, but slowly cycles color together with blinking.
While standard get-started/blink sample just switches LED from off state to RGB(16,16,16), at least looks like that.

Could anyone help with the sample source ?