<bmx-code-diff>
The differences between two texts, side by side or in one column.
F7 and Shift+F7 move between changes. Revert a change, or take it into the original, with the buttons above it.
A patch, without its files
Give it the output of git diff (or any unified diff): each file and hunk is shown with its line numbers.
Every property, event and method: https://docs.binarymission.co.uk/webcomponents/bmx/bmx-code-diff.html