Don't use DiffHighlight to get the colors because it shells out and is slow

Author: scottchiefbaker

diff-so-fancy

@@ -876,19 +876,19 @@ sub color {
 
 		if ($str eq "meta") {
 			# Default ANSI yellow
-			$ret = DiffHighlight::color_config('color.diff.meta', color(11));
+			$ret = git_ansi_color(git_config('color.diff.meta')) || color(11);
 		} elsif ($str eq "reset") {
 			$ret = color("reset");
 		} elsif ($str eq "add_line") {
 			# Default ANSI green
-			$ret = DiffHighlight::color_config('color.diff.new', color('bold') . color(2));
+			$ret = git_ansi_color(git_config('color.diff.new')) || color("2_bold");
 		} elsif ($str eq "remove_line") {
 			# Default ANSI red
-			$ret = DiffHighlight::color_config('color.diff.old', color('bold') . color(1));
+			$ret = git_ansi_color(git_config('color.diff.old')) || color("1_bold");
 		} elsif ($str eq "fragment") {
-			$ret = DiffHighlight::color_config('color.diff.frag', color('13_bold'));
+			$ret = git_ansi_color(git_config('color.diff.frag')) || color("13_bold");
 		} elsif ($str eq "last_function") {
-			$ret = DiffHighlight::color_config('color.diff.func', color('bold') . color(146));
+			$ret = git_ansi_color(git_config('color.diff.func')) || color("146_bold");
 		}
 
 		# Cache (memoize) the entry for later