[pjturpeau]

It seems to be a great tool, however on the few checks I did on big XML files, it shows modified lines in normal green and modified attributes in bold green, which makes them difficult to detect visualy.

I didn't find in the documentation how it is possible to change the style of the diff, or to ask for another color in the bold case.

Any idea?

[jez]

Unfortunately it doesn't appear to allow customizing colors yet.

I chimed in on this issue[1] to express support for that. You may wish to also chime in on that one, or open a new issue if you think that the feature you're looking for is sufficiently different from the one discussed in that thread.

[1]: https://github.com/Wilfred/difftastic/issues/611