Complex RGB Effects Code Possible with ESPHome?

I feel bad asking this because I am sure it is related to something obvious I have somehow missed. I have been google searching for days for examples to learn from that allow me to use my RGB LED (WS2812) code written in VSCODE C++ for ESP32S3 using ESPHome. All I have found mostly is people that have turned their LEDS on and off, changed their color, but nothing that allows me to include my 4-LED candle flicker code with my ESPHome xaml.

I even found a youtube where a guy used Node-Red to create a rainbow effect, but he was not clear where that level of control would reside.

The LAST thing I want to do is have a complex RGB effect and task my Home Assistant resources constantly updating it with changes to individual LED pixel colors and fades. And again, I feel like, Iā€™m SURE I am missing something. Is there a way to include code I wrote in VSCODE that does this effect? And how does it loop?

And again, sorry to ask something that has probably been repeated. I searched but did not find what I was looking for. Probably because I used the wrong terms.

THANKS!

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Thank you sir! Quick answer, short and sweet, and it was the bread crumb that helped me find what I was looking for. Actually discovered a LOT today because of it. Thank you!!

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