How to change color in git diff

Question

I was able to change color for old, new, and meta regions, but I can't find the option to change the color of @@ -1 +1, 2 @@ (in the picture) and the color of the red square at the end (in the picture).

Answer 1

Hunk header color option is called color.diff.frag.

Whitespace at the end is called color.diff.whitespace.
Whitespace uses background color so you have to set both colors (thanks @IGRACH)

You can test it like this:

git -c color.diff.frag=yellow -c color.diff.whitespace='cyan cyan' diff

For completeness, the rest of options are:

• context (context text - plain is a historical synonym)
• meta (metainformation)
• frag (hunk header)
• func (function in hunk header)
• old (removed lines)
• new (added lines)
• commit (commit headers)
• whitespace (highlighting whitespace errors)
• oldMoved (deleted lines)
• newMoved (added lines)
• oldMovedDimmed
• oldMovedAlternative
• oldMovedAlternativeDimmed
• newMovedDimmed
• newMovedAlternative
• newMovedAlternativeDimmed
• contextDimmed
• oldDimmed
• newDimmed
• contextBold
• oldBold
• newBold

Available colors: normal, black, red, green, yellow, blue, magenta, cyan, white and default