Hi Josh, yes, try Settings->IDE Settings->Editor->Colors & Fonts->Diff HTH, Yann
Hi Josh,
http://youtrack.jetbrains.com/issue/IDEA-80880
Accordingly to this ticket it has been fixed (although I don't know what version you run, so it may be not there yet .. or it may work differently -- I've not tested this myself yet). Please try Settings | Editor | Colors & Fonts | General | Added Lines / Modified Lines