This extension is mainly used to make the GM window background transparent or semi-transparent (such as removing the default black, showing the program or desktop behind the window, allowing to set the overall transparency or gradient transparency, and also has a screenshot function for faking semi-transparency in full-screen mode where efficiency is required). You can even create a new window for interaction.

It can be used to make desktop pets and desktop tools (such as showing pressed keys, supporting dragging and dropping files to the window, opening files, so you can make file drawers). Because of the support for making desktop tools, it also allows more magical interactions, such as dragging and dropping files to desktop pets or game characters.

And additionally solve some other details:
For example, typical: do not allow writing or deleting files to the directory where the game exe is located, now you can do this.
You can disable or restore the ime of the window to avoid the need to switch the input method to respond to the keyboard, and add the ime position correction function.
Added a second confirmation for window closing to avoid accidentally closing when you need to save data.
Added a more convenient out-of-focus keyboard press and release function than the keyboard_check_direct function and solved the conflict between this function and the left mouse button.

The jackal sprite in the example from shattered pixel dungeon
live2d extension comes from 奥特曼(ultradrone)and uu(unidentified) gamemaker-live2d-extension

Note:
This extension is only applicable to Windows