The files contained in Build_theme.zip will create a Windows Theme from your
pictures.
Build_theme.zip does not contain any pictures.
These procedures work best on Windows 10. There have been quite a few changes to themes in the beta versions. Currently Windows will display a theme containing panoramic and non panoramic pictures on two monitors.
Over the years, like most, I have collected quite a few digital photos. Currently my
personal theme contains over 1000 pictures.
Build_theme.zip contains: