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 tha

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 https://github.com/Wilfred/difftastic/issues/611