Burn effect when closing process (as in Compiz Fusion on Ubuntu)

[Shelushun]

Help to repeat the burn effect as in Compiz Fusion (or improve the effect itself by making it more realistic)

In general, the idea is that when the window is closed, it burns down.
I know absolutely nothing about code, and I wrote the code whith AI.
But no matter how hard I tried, the burn effect is completely unrealistic.
The principle is this. When the window is closed, a screenshot of it is taken and this screenshot burns out realistically.
If anyone has nostalgia for this effect, please help me complete the code.

In this code, only notepad burns down.
I intentionally specified it for debugging purposes so as not to confuse it with other applications.

https://youtu.be/U8lJJaVMMKA?t=66

mod.hw.txt