diff --git a/kcms/colors/colors.h b/kcms/colors/colors.h
--- a/kcms/colors/colors.h
+++ b/kcms/colors/colors.h
@@ -48,6 +48,7 @@
 
     Q_PROPERTY(ColorsModel *model READ model CONSTANT)
     Q_PROPERTY(FilterProxyModel *filteredModel READ filteredModel CONSTANT)
+    Q_PROPERTY(ColorsSettings *colorsSettings READ colorsSettings CONSTANT)
     Q_PROPERTY(bool downloadingFile READ downloadingFile NOTIFY downloadingFileChanged)
 
 public:
@@ -70,7 +71,7 @@
 
     ColorsModel *model() const;
     FilterProxyModel *filteredModel() const;
-
+    ColorsSettings *colorsSettings() const;
     bool downloadingFile() const;
 
     Q_INVOKABLE void getNewStuff(QQuickItem *ctx);
diff --git a/kcms/colors/colors.cpp b/kcms/colors/colors.cpp
--- a/kcms/colors/colors.cpp
+++ b/kcms/colors/colors.cpp
@@ -67,6 +67,7 @@
     qmlRegisterUncreatableType<KCMColors>("org.kde.private.kcms.colors", 1, 0, "KCM", QStringLiteral("Cannot create instances of KCM"));
     qmlRegisterType<ColorsModel>();
     qmlRegisterType<FilterProxyModel>();
+    qmlRegisterType<ColorsSettings>();
 
     KAboutData *about = new KAboutData(QStringLiteral("kcm_colors"), i18n("Colors"),
                                        QStringLiteral("2.0"), QString(), KAboutLicense::GPL);
@@ -105,6 +106,11 @@
     return m_filteredModel;
 }
 
+ColorsSettings *KCMColors::colorsSettings() const
+{
+    return m_settings;
+}
+
 bool KCMColors::downloadingFile() const
 {
     return m_tempCopyJob;
diff --git a/kcms/colors/package/contents/ui/main.qml b/kcms/colors/package/contents/ui/main.qml
--- a/kcms/colors/package/contents/ui/main.qml
+++ b/kcms/colors/package/contents/ui/main.qml
@@ -47,7 +47,7 @@
         value:  filterCombo.model[filterCombo.currentIndex].filter
     }
 
-    enabled: !kcm.downloadingFile
+    enabled: !kcm.downloadingFile && !kcm.colorsSettings.isImmutable("colorScheme")
 
     Component.onCompleted: {
         // The thumbnails are a bit more elaborate and need more room, especially when translated