I have created WinUI3 project to make a overlay application show it on top of every other application.
I need below things to be implemented.
1. How to change the background color of the window.
2. How to remove the close icon in the top right corner of the winow.
3. how to remove the image and title bar from the window.
4. how to make the window transparent.
the code which i wrote is attached here.
help me to create a overlay kind of application here.