[nerdponx]

Hideous screenshots aside, Graphtage itself looks very useful. Can it generate Git-compatible diffs for use as a Git difftool?

Also-- for "standalone" tools like this that are written in Python, I highly recommend Pipx for installing them: https://pipxproject.github.io/pipx/. It installs each tool into a separate self-contained virtual environment and symlinks the executable itself to a "bin" directory, which prevents tools with different dependencies from conflicting.