I'm not really familiar with word press.
But the only way to see is to view the source code side by side. is my bet.
This way can be used in the case we don't have a tool to compare content between files.
Windows
fc /a file1.php file2.php
Running this on windows command?
I bought a paid Wordpress theme and made changes on it but now it has got a new version, I want to check the structure/code differences what I changed between old and new version of theme. we Is it possible to compare content in files or folders by using a software or tool on Windows?
I would recommend using
Winmerge
There are any good tool to compare file content but if you want to compare more files between folders together then this tool can be a good choice.
After installed it on your PC, you can want to check its options and changing some configurations there
Edit \ Options
Ctrl + O
You can compare content between 2 different folders or compare a folder with itself ( for the folder with changes ) on Left, Right
You can change filter to *.css or *.php if you only want to compare in PHP or CSS files...etc
After you click OK then you will have a list of files that were compared.
You can click on a file and see the differences like this
Hope it helps!