diff --git a/background.js b/background.js
index 7440e52..4d86418 100644
--- a/background.js
+++ b/background.js
@@ -1239,7 +1239,7 @@ class uDarkC extends uDarkExtended {
     if (!possiblecolor || possiblecolor === "none") { // none is not a color, and it not usefull to create a style element for it
       return false
     }
-    if (uDark.website_context && possiblecolor.includes("var(")) {
+    if (!uDark.is_background && possiblecolor.includes("var(")) {
       return uDark.is_color_var(possiblecolor, as_float, fill, cssRule, spanp)
     }
     
diff --git a/backgroundClass.js b/backgroundClass.js
index 20eee87..0fd68e6 100644
--- a/backgroundClass.js
+++ b/backgroundClass.js
@@ -381,7 +381,7 @@ class uDarkExtended extends uDarkExtendedContentScript {
         }),
       }
       regiteredCS = []
-      is_background = true
+      is_background = true // Tell ultimadark that we are in the background script and is_color_var is not available for instance
       loggingWorkersActiveLogging = false // Conider moving this to imageWorker to avoid messages passing for nothing
       LoggingWorker = class LoggingWorker extends Worker {
         constructor(...args) {
diff --git a/contentScriptClass.js b/contentScriptClass.js
index a7926a1..e420243 100644
--- a/contentScriptClass.js
+++ b/contentScriptClass.js
@@ -1,7 +1,7 @@
 class uDarkExtendedContentScript  {
   
   is_content_script =  true
-  website_context = true
+  website_context = true // Tell ultimadark we are in a website context and is_color_var is available
   install() {
     uDark.exportFunction = globalThis.exportFunction; // Don't override the exportFunction function, but make it available to ultimadark
     console.info("UltimaDark", "Content script install", window);     
@@ -83,7 +83,7 @@ class uDarkExtendedContentScript  {
     let start = performance.now();
     
     uDark.info( "Content script override website", window);
-    uDark.website_context = true;
+    uDark.website_context = true; // Tell ultimadark we are in a website context and is_color_var is available
     window.userSettingsReadyAction = function() {
       uDark.success("User settings ready", window.userSettings);
       if (!uDark.userSettings.keep_service_workers && window.navigator.serviceWorker) {