UI Improvements
Put a border around the application frame so it's eaier to detect on the screen with 20 other windows open...
Much more importantly you need to add a way to cycle through the differences in the source control diff window by allowing to move through the changes instead of having to scroll. The blue is very hard to see in the side bar, too. Allowing simple text search wouldn't hurt either.
There is a border around the application. There’s also a “Previous” and “Next” button at the top of the differences pane near the bottom. This will jump you the Previous/Next difference within the script respectively.