Sally: Plugins: File Comparator: Using File Comparator Plugin

Showing Detailed Differences

The plugin can also show detailed differences, which means it highlights not only lines with differences, but also the specific added, changed, and deleted characters. If you want this to be always enabled, check the Show detailed differences by default box on the General tab in the Configuration dialog.

To show detailed differences:

File Comparator menu:View/Detailed Differences
File Comparator shortcut key:F4