Package meld: Information

Meld is a visual diff and merge tool. It lets you compare two or three
files, and updates the comparisons while you edit them in-place. You
can also compare folders, launching comparisons of individual files as
desired. Last but by no means least, Meld lets you work with your
current changes in a wide variety of version control systems,
including Git, Bazaar, Mercurial, Subversion and CVS.