Pixel Editor- Generico

I was on a PC where I couldn't log in to my accounts, so I programmed this pixel editor to do something. It's free, use it. I use professional tools, and if anyone likes it and wants to tell me about any bugs or suggestions, feel free to tell me. It worked for me for 2 days, but I don't use it anymore. You can modify it. It has errors in certain tools but I did it in passing, it is not professional, if you correct it please share it