diff --git a/extensions/theme-red/themes/Red-color-theme.json b/extensions/theme-red/themes/Red-color-theme.json
index 7364b0685b3..d27b58926cb 100644
--- a/extensions/theme-red/themes/Red-color-theme.json
+++ b/extensions/theme-red/themes/Red-color-theme.json
@@ -1,12 +1,15 @@
 {
 	"tokenColors": "./red.tmTheme",
 	"colors": {
+		"activityBarBackground": "#4B0000",
 		"editorBackground": "#390000",
 		"editorCursor": "#970000",
 		"editorForeground": "#F8F8F8",
 		"editorWhitespaces": "#c10000",
 		"editorLineHighlight": "#0000004A",
-		"editorSelection": "#750000"
+		"editorSelection": "#750000",
+		"inactiveTabBackground": "#300000",
+		"sideBarBackground": "#300000"
 	},
 	"name": "Red"
 }
\ No newline at end of file