use prism-tomorrow.css

docs/_style/prism-master/components/prism-diff.js

@@ -0,0 +1,20 @@
+Prism.languages.diff = {
+	'coord': [
+		// Match all kinds of coord lines (prefixed by "+++", "---" or "***").
+		/^(?:\*{3}|-{3}|\+{3}).*$/m,
+		// Match "@@ ... @@" coord lines in unified diff.
+		/^@@.*@@$/m,
+		// Match coord lines in normal diff (starts with a number).
+		/^\d+.*$/m
+	],
+
+	// Match inserted and deleted lines. Support both +/- and >/< styles.
+	'deleted': /^[-<].*$/m,
+	'inserted': /^[+>].*$/m,
+
+	// Match "different" lines (prefixed with "!") in context diff.
+	'diff': {
+		'pattern': /^!(?!!).+$/m,
+		'alias': 'important'
+	}
+};