diff --git a/crlcore/etc/common/display.py b/crlcore/etc/common/display.py
index aa9c595d..e7fe49b2 100644
--- a/crlcore/etc/common/display.py
+++ b/crlcore/etc/common/display.py
@@ -13,12 +13,17 @@
 # +-----------------------------------------------------------------+
 
 
+import Cfg
 import Viewer
+from   helpers         import overlay, l, u, n
 from   common.colors   import toRGB
 from   common.patterns import toHexa
 
 
 def createStyles ( scale=1.0 ):
+    with overlay.CfgCache(priority=Cfg.Parameter.Priority.UserFile) as cfg:
+        cfg.viewer.minimumSize = 500 
+        cfg.viewer.pixelThreshold = 5 
 
     # ----------------------------------------------------------------------
     # Style: Alliance.Coriolis [black].
diff --git a/hurricane/src/viewer/CellWidget.cpp b/hurricane/src/viewer/CellWidget.cpp
index 390dc20d..998a67af 100644
--- a/hurricane/src/viewer/CellWidget.cpp
+++ b/hurricane/src/viewer/CellWidget.cpp
@@ -1112,6 +1112,7 @@ namespace Hurricane {
     , _textFontHeight       (20)
     , _pixelThreshold       (Cfg::getParamInt("viewer.pixelThreshold",50)->asInt())
   {
+  //cerr << "viewer.pixelThreshold=" << _pixelThreshold << endl;
   //setBackgroundRole ( QPalette::Dark );
   //setAutoFillBackground ( false );
     setAttribute     ( Qt::WA_OpaquePaintEvent );