[Feature request] Use different icons for different types of changes

Suppose I moved a file from `root/path_a` to `root/path_b`, the PR tree view only shows file under `root/path_b`. Is it better to show the file is deleted in `root/path_a` and added in `root/path_b` or at least to show the file is refactored somehow?

The current icons for different types of changes (e.g. update single file, add one file, moved file from path a to path b, etc) are the same as shown in readme:

Just a recommendation, instead of using yellow based icon, maybe use green/red/yellow based icon to show the file is added/deleted/updated correspondingly? OR use the "moved from" like what IntellIJ is using here:

Thanks!