All options that have a name like
--*-style work in the same way. It is very similar to how
colors/styles are specified in a gitconfig file:
Here's an example:
[delta] minus-style = red bold ul "#ffeeee"
That means: For removed lines, set the foreground (text) color to 'red', make it bold and underlined, and set the background color to
For full details, see the
STYLES section in