diff --git a/extensions/theme-defaults/themes/dark_vs.json b/extensions/theme-defaults/themes/dark_vs.json
index 04fb21cd5e5..4208fccdfea 100644
--- a/extensions/theme-defaults/themes/dark_vs.json
+++ b/extensions/theme-defaults/themes/dark_vs.json
@@ -116,6 +116,24 @@
 				"fontStyle": "italic"
 			}
 		},
+		{
+			"scope": "markup.inserted",
+			"settings": {
+				"foreground": "#b5cea8"
+			}
+		},
+		{
+			"scope": "markup.deleted",
+			"settings": {
+				"foreground": "#ce9178"
+			}
+		},
+		{
+			"scope": "markup.changed",
+			"settings": {
+				"foreground": "#569cd6"
+			}
+		},
 		{
 			"scope": "meta.selector",
 			"settings": {
diff --git a/extensions/theme-defaults/themes/hc_black.json b/extensions/theme-defaults/themes/hc_black.json
index c5cf71c524c..278ecaac83d 100644
--- a/extensions/theme-defaults/themes/hc_black.json
+++ b/extensions/theme-defaults/themes/hc_black.json
@@ -104,6 +104,24 @@
 				"fontStyle": "italic"
 			}
 		},
+		{
+			"scope": "markup.inserted",
+			"settings": {
+				"foreground": "#b5cea8"
+			}
+		},
+		{
+			"scope": "markup.deleted",
+			"settings": {
+				"foreground": "#ce9178"
+			}
+		},
+		{
+			"scope": "markup.changed",
+			"settings": {
+				"foreground": "#569cd6"
+			}
+		},
 		{
 			"scope": "meta.selector",
 			"settings": {
diff --git a/extensions/theme-defaults/themes/light_vs.json b/extensions/theme-defaults/themes/light_vs.json
index 768f99d13fd..d8e1d6e7afa 100644
--- a/extensions/theme-defaults/themes/light_vs.json
+++ b/extensions/theme-defaults/themes/light_vs.json
@@ -106,6 +106,24 @@
 				"fontStyle": "italic"
 			}
 		},
+		{
+			"scope": "markup.inserted",
+			"settings": {
+				"foreground": "#09885a"
+			}
+		},
+		{
+			"scope": "markup.deleted",
+			"settings": {
+				"foreground": "#a31515"
+			}
+		},
+		{
+			"scope": "markup.changed",
+			"settings": {
+				"foreground": "#0451a5"
+			}
+		},
 		{
 			"scope": "meta.selector",
 			"settings": {