diff --git a/src/common/Configuration.cpp b/src/common/Configuration.cpp
index 014f2cfa..687b2866 100644
--- a/src/common/Configuration.cpp
+++ b/src/common/Configuration.cpp
@@ -156,6 +156,8 @@ void Configuration::loadDefaultTheme()
     setColor("gui.navbar.sym", QColor(229, 150, 69));
     setColor("gui.navbar.empty", QColor(100, 100, 100));
     setColor("gui.breakpoint_background", QColor(233, 143, 143));
+    setColor("gui.item_invalid", QColor(155, 155, 155));
+    setColor("gui.item_unsafe", QColor(255, 129, 123));
 }
 
 void Configuration::loadBaseDark()
@@ -189,6 +191,8 @@ void Configuration::loadBaseDark()
     setColor("gui.dataoffset", QColor(255, 255, 255));
     // Custom
     setColor("gui.imports", QColor(50, 140, 255));
+    setColor("gui.item_invalid", QColor(155, 155, 155));
+    setColor("gui.item_unsafe", QColor(255, 129, 123));
     setColor("gui.main", QColor(0, 128, 0));
 
     // GUI: navbar
diff --git a/src/widgets/ImportsWidget.cpp b/src/widgets/ImportsWidget.cpp
index 245de5a7..13ab7764 100644
--- a/src/widgets/ImportsWidget.cpp
+++ b/src/widgets/ImportsWidget.cpp
@@ -31,8 +31,12 @@ QVariant ImportsModel::data(const QModelIndex &index, int role) const
     switch (role) {
     case Qt::ForegroundRole:
         if (index.column() < ImportsModel::ColumnCount) {
+            // Red color for unsafe functions
             if (banned.match(import.name).hasMatch())
-                return QColor(255, 129, 123);
+                return Config()->getColor("gui.item_unsafe");
+            // Grey color for symbols at offset 0 which can only be filled at runtime
+            if (import.plt == 0)
+                return Config()->getColor("gui.item_invalid");
         }
         break;
     case Qt::DisplayRole: