Vitrite

Vitrite is a free program that you can use to control the transparency of Windows windows by yourself. To change the degree of transparency of the window, you first need to make it active, and then, by pressing the key combination Ctrl+Shift+any digit from the top row of keys, select one of the proposed nine degrees of transparency. Another function of this program is the ability to set the selected window "on top of other windows", which can be run by pressing Ctrl+Shift+ plus sign. In the activated state the program is in the Windows system tray.