glass

make overwrapping windows be transparent

Usage

Sub commands

Sub commands:
  watch, w  run constantly
  list, ls  list overwrapping windows
  temp      run once
  recover   force all windows untransparent

Options:
  -v, --verbose  verbose output to stderr

glass watch [window_title | process_name]

An example

glass watch メモ

or

glass watch notepad

The windows other than Notepad are transparent so that you can see the contents of Notepad.

You can do your work while playing the video behind. 😈