One more thing, at first, I could not find any example file in this version. Then I checked the Itch page. I discovered the URL "Samples". There are many examples files under a "Program" folder on Github. How to download this "Program" folder and all files in it? An A.I. suggested three methods. The most simple method is: press the "code" button on the Github page, download the download.zip file which contains all files of the project, after download, decompress the zip file and look for the "Program" folder.
Ha....perhaps the staff of Github should add a new feature for downloading a folder and its files directly.