Sometimes, I wrap code around a function or conditional, and then apply indentation. The diff marks and preview show that all the block has been modified, and that does not help me when I want to know if something has been changed inside that block or not.

Solution:
Add a toggle option to switch between regular and "ignore-space-change" modes.

Alternatives:
At the moment, I simple do a "git diff --ignore-space-change" on the command line to have a better view of non-space changes.

I can try a PR if I'm given hints for directions!