diff --git a/extensions/theme-monokai-dimmed/themes/dimmed-monokai.tmTheme b/extensions/theme-monokai-dimmed/themes/dimmed-monokai.tmTheme
index 83284b286ca..5c542a4394e 100644
--- a/extensions/theme-monokai-dimmed/themes/dimmed-monokai.tmTheme
+++ b/extensions/theme-monokai-dimmed/themes/dimmed-monokai.tmTheme
@@ -722,7 +722,64 @@
 				<string>#D0B344</string>
 			</dict>
 		</dict>
-
+		<dict>
+			<key>name</key>
+			<string>diff: header</string>
+			<key>scope</key>
+			<string>meta.diff, meta.diff.header</string>
+			<key>settings</key>
+			<dict>
+				<key>background</key>
+				<string>#b58900</string>
+				<key>fontStyle</key>
+				<string>italic</string>
+				<key>foreground</key>
+				<string>#E0EDDD</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>diff: deleted</string>
+			<key>scope</key>
+			<string>markup.deleted</string>
+			<key>settings</key>
+			<dict>
+				<key>background</key>
+				<string>#eee8d5</string>
+				<key>fontStyle</key>
+				<string></string>
+				<key>foreground</key>
+				<string>#dc322f</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>diff: changed</string>
+			<key>scope</key>
+			<string>markup.changed</string>
+			<key>settings</key>
+			<dict>
+				<key>background</key>
+				<string>#eee8d5</string>
+				<key>fontStyle</key>
+				<string></string>
+				<key>foreground</key>
+				<string>#cb4b16</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>name</key>
+			<string>diff: inserted</string>
+			<key>scope</key>
+			<string>markup.inserted</string>
+			<key>settings</key>
+			<dict>
+				<key>background</key>
+				<string>#eee8d5</string>
+				<key>foreground</key>
+				<string>#219186</string>
+			</dict>
+		</dict>
 		<dict>
 			<key>name</key>
 			<string>Markup Quote</string>