When you use a VCS (like svn or git) to keep track of changes in lst-files you surely come across the situation, when you have to compare to lst-files.
It would be nice if the Designer (or another tool) could display differences between two files.
Do you mean visually or just as a text diff?
If text diff your VCS should already support this. If not you can use Microsoft Visual Studio Code Editor like so from commandline:
code --diff form1.lst form2.lst
Mike
Closing as “declined” - can easily be solved with 3rd party tools.