Any dynamic lighting tool so that i donot have to draw each pixel

I use aseprite to create pixelated animation videos, can you tell me any dynamic lighting tool which i can use so that i donot have to draw each pixel with different opacity for ligting effect. I tried laigter but was of no use

I can probably help but would need more details, like, what are you doing how are you doing it and what are you trying to do that you are having trouble with?