diff --git a/lang/qet_pl.qm b/lang/qet_pl.qm
index cefca60a8..e85d34075 100644
Binary files a/lang/qet_pl.qm and b/lang/qet_pl.qm differ
diff --git a/lang/qet_pl.ts b/lang/qet_pl.ts
index 22311a525..aa07267b5 100644
--- a/lang/qet_pl.ts
+++ b/lang/qet_pl.ts
@@ -535,7 +535,7 @@
     <message>
         <location filename="../sources/ui/conductorpropertieswidget.ui" line="376"/>
         <source>size:</source>
-        <translation type="unfinished"></translation>
+        <translation>Rozmiar:</translation>
     </message>
     <message>
         <location filename="../sources/ui/conductorpropertieswidget.ui" line="317"/>
@@ -1496,102 +1496,103 @@ Zmiany zostaną zapisane.</translation>
     <message>
         <location filename="../sources/ElementsCollection/elementscollectionwidget.cpp" line="87"/>
         <source>Ouvrir le dossier correspondant</source>
-        <translation type="unfinished">Otwórz odpowiedni katalog</translation>
+        <translation>Otwórz odpowiedni katalog</translation>
     </message>
     <message>
         <location filename="../sources/ElementsCollection/elementscollectionwidget.cpp" line="88"/>
         <source>Éditer l&apos;élément</source>
-        <translation type="unfinished">Edytuj element</translation>
+        <translation>Edytuj element</translation>
     </message>
     <message>
         <location filename="../sources/ElementsCollection/elementscollectionwidget.cpp" line="89"/>
         <source>Supprimer l&apos;élément</source>
-        <translation type="unfinished">Usuń element</translation>
+        <translation>Usuń element</translation>
     </message>
     <message>
         <location filename="../sources/ElementsCollection/elementscollectionwidget.cpp" line="90"/>
         <source>Supprimer le dossier</source>
-        <translation type="unfinished"></translation>
+        <translation>Usuń katalog</translation>
     </message>
     <message>
         <location filename="../sources/ElementsCollection/elementscollectionwidget.cpp" line="91"/>
         <source>Recharger les collections</source>
-        <translation type="unfinished">Odśwież kolekcję</translation>
+        <translation>Odśwież kolekcję</translation>
     </message>
     <message>
         <location filename="../sources/ElementsCollection/elementscollectionwidget.cpp" line="92"/>
         <source>Éditer le dossier</source>
-        <translation type="unfinished"></translation>
+        <translation>Edytuj katalog</translation>
     </message>
     <message>
         <location filename="../sources/ElementsCollection/elementscollectionwidget.cpp" line="93"/>
         <source>Nouveau dossier</source>
-        <translation type="unfinished"></translation>
+        <translation>Nowy katalog</translation>
     </message>
     <message>
         <location filename="../sources/ElementsCollection/elementscollectionwidget.cpp" line="94"/>
         <source>Nouvel élément</source>
-        <translation type="unfinished">Nowy element</translation>
+        <translation>Nowy element</translation>
     </message>
     <message>
         <location filename="../sources/ElementsCollection/elementscollectionwidget.cpp" line="108"/>
         <source>Rechercher</source>
-        <translation type="unfinished">Odśwież</translation>
+        <translation>Odśwież</translation>
     </message>
     <message>
         <location filename="../sources/ElementsCollection/elementscollectionwidget.cpp" line="122"/>
         <source>Chargement</source>
-        <translation type="unfinished"></translation>
+        <translation>Ładuj</translation>
     </message>
     <message>
         <location filename="../sources/ElementsCollection/elementscollectionwidget.cpp" line="247"/>
         <source>Supprimer l&apos;élément ?</source>
         <comment>message box title</comment>
-        <translation type="unfinished">Usunąć element?</translation>
+        <translation>Usunąć element?</translation>
     </message>
     <message>
         <location filename="../sources/ElementsCollection/elementscollectionwidget.cpp" line="248"/>
         <source>Êtes-vous sûr  de vouloir supprimer cet élément ?
 </source>
         <comment>message box content</comment>
-        <translation type="unfinished">Czy na pewno chcesz usunąć ten element?</translation>
+        <translation>Czy na pewno chcesz usunąć ten element?</translation>
     </message>
     <message>
         <location filename="../sources/ElementsCollection/elementscollectionwidget.cpp" line="254"/>
         <source>Suppression de l&apos;élément</source>
         <comment>message box title</comment>
-        <translation type="unfinished">Usuwanie elementu</translation>
+        <translation>Usuwanie elementu</translation>
     </message>
     <message>
         <location filename="../sources/ElementsCollection/elementscollectionwidget.cpp" line="255"/>
         <source>La suppression de l&apos;élément a échoué.</source>
         <comment>message box content</comment>
-        <translation type="unfinished">Usuwanie elementu nie powiodło się.</translation>
+        <translation>Usuwanie elementu nie powiodło się.</translation>
     </message>
     <message>
         <location filename="../sources/ElementsCollection/elementscollectionwidget.cpp" line="274"/>
         <source>Supprimer le dossier?</source>
         <comment>message box title</comment>
-        <translation type="unfinished"></translation>
+        <translation>Usunąć katalog?</translation>
     </message>
     <message>
         <location filename="../sources/ElementsCollection/elementscollectionwidget.cpp" line="275"/>
         <source>Êtes-vous sûr  de vouloir supprimer le dossier ?
 Tout les éléments et les dossier contenus dans ce dossier seront supprimés.</source>
         <comment>message box content</comment>
-        <translation type="unfinished"></translation>
+        <translation>Czy na pewno chcesz usunąć ten katalog?
+Wszystkie elementy i podkatalogi znajdujące się w tym katalogu zostaną usunięte.</translation>
     </message>
     <message>
         <location filename="../sources/ElementsCollection/elementscollectionwidget.cpp" line="283"/>
         <source>Suppression du dossier</source>
         <comment>message box title</comment>
-        <translation type="unfinished"></translation>
+        <translation>Usunięcie katalogu</translation>
     </message>
     <message>
         <location filename="../sources/ElementsCollection/elementscollectionwidget.cpp" line="284"/>
         <source>La suppression du dossier a échoué.</source>
         <comment>message box content</comment>
-        <translation type="unfinished"></translation>
+        <translation>Usuwanie katalogu nie powiodło się.</translation>
     </message>
 </context>
 <context>
@@ -3668,7 +3669,7 @@ Dostępne opcje:
     <message>
         <location filename="../sources/qetdiagrameditor.cpp" line="162"/>
         <source>Collection d&apos;éléments</source>
-        <translation type="unfinished">Kolekcja elementów</translation>
+        <translation>Kolekcja elementów</translation>
     </message>
     <message>
         <location filename="../sources/qetdiagrameditor.cpp" line="184"/>
@@ -6392,17 +6393,17 @@ Co chcesz zrobić?</translation>
     <message>
         <location filename="../sources/ElementsCollection/fileelementcollectionitem.cpp" line="311"/>
         <source>Collection QET</source>
-        <translation type="unfinished">Kolekcja QET</translation>
+        <translation>Kolekcja QET</translation>
     </message>
     <message>
         <location filename="../sources/ElementsCollection/fileelementcollectionitem.cpp" line="313"/>
         <source>Collection utilisateur</source>
-        <translation type="unfinished">Kolekcja użytkownika</translation>
+        <translation>Kolekcja użytkownika</translation>
     </message>
     <message>
         <location filename="../sources/ElementsCollection/fileelementcollectionitem.cpp" line="315"/>
         <source>Collection inconnue</source>
-        <translation type="unfinished"></translation>
+        <translation>Nienazwany katalog</translation>
     </message>
 </context>
 <context>
@@ -6604,12 +6605,12 @@ Pozostałe pola nie są używane.
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.ui" line="20"/>
         <source>Trait</source>
-        <translation type="unfinished"></translation>
+        <translation>Linia</translation>
     </message>
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.ui" line="26"/>
         <source>Épaisseur</source>
-        <translation type="unfinished"></translation>
+        <translation>Grubość</translation>
     </message>
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.ui" line="34"/>
@@ -6639,98 +6640,98 @@ Pozostałe pola nie są używane.
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.ui" line="96"/>
         <source>Type</source>
-        <translation type="unfinished">Typ</translation>
+        <translation>Typ</translation>
     </message>
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.ui" line="103"/>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.ui" line="212"/>
         <source>Couleur</source>
-        <translation type="unfinished"></translation>
+        <translation>Kolor</translation>
     </message>
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.ui" line="120"/>
         <source>Remplissage</source>
-        <translation type="unfinished"></translation>
+        <translation>Wypełnienie</translation>
     </message>
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.ui" line="126"/>
         <source>Style</source>
-        <translation type="unfinished"></translation>
+        <translation>Typ</translation>
     </message>
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.ui" line="134"/>
         <source>Aucun</source>
-        <translation type="unfinished">Brak</translation>
+        <translation>Brak</translation>
     </message>
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.ui" line="139"/>
         <source>Plein</source>
-        <translation type="unfinished"></translation>
+        <translation>Ciągła</translation>
     </message>
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.ui" line="144"/>
         <source>Densité 1</source>
-        <translation type="unfinished"></translation>
+        <translation>Gęstość 1</translation>
     </message>
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.ui" line="149"/>
         <source>Densité 2</source>
-        <translation type="unfinished"></translation>
+        <translation>Gęstość 2</translation>
     </message>
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.ui" line="154"/>
         <source>Densité 3</source>
-        <translation type="unfinished"></translation>
+        <translation>Gęstość 3</translation>
     </message>
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.ui" line="159"/>
         <source>Densité 4</source>
-        <translation type="unfinished"></translation>
+        <translation>Gęstość 4</translation>
     </message>
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.ui" line="164"/>
         <source>Densité 5</source>
-        <translation type="unfinished"></translation>
+        <translation>Gęstość 5</translation>
     </message>
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.ui" line="169"/>
         <source>Densité 6</source>
-        <translation type="unfinished"></translation>
+        <translation>Gęstość 6</translation>
     </message>
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.ui" line="174"/>
         <source>Densité 7</source>
-        <translation type="unfinished"></translation>
+        <translation>Gęstość 7</translation>
     </message>
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.ui" line="179"/>
         <source>Horizontal</source>
-        <translation type="unfinished">Pionowo</translation>
+        <translation>Pionowo</translation>
     </message>
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.ui" line="184"/>
         <source>Vertical</source>
-        <translation type="unfinished">Poziomo</translation>
+        <translation>Poziomo</translation>
     </message>
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.ui" line="189"/>
         <source>Croix</source>
-        <translation type="unfinished"></translation>
+        <translation>Siatka</translation>
     </message>
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.ui" line="194"/>
         <source>Diagonal arrière</source>
-        <translation type="unfinished"></translation>
+        <translation>Ukośnie do tyłu</translation>
     </message>
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.ui" line="199"/>
         <source>Diagonal avant</source>
-        <translation type="unfinished"></translation>
+        <translation>Ukośnie do przodu</translation>
     </message>
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.ui" line="204"/>
         <source>Diagonal en croix</source>
-        <translation type="unfinished"></translation>
+        <translation>Ukośna siatka</translation>
     </message>
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.ui" line="229"/>
@@ -6740,7 +6741,7 @@ Pozostałe pola nie są używane.
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.ui" line="236"/>
         <source>Polygone fermé</source>
-        <translation type="unfinished">Wielokąt zamknięty</translation>
+        <translation>Wielokąt zamknięty</translation>
     </message>
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.h" line="48"/>
@@ -6750,17 +6751,17 @@ Pozostałe pola nie są używane.
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.cpp" line="116"/>
         <source>Modifier le trait d&apos;une forme</source>
-        <translation type="unfinished"></translation>
+        <translation></translation>
     </message>
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.cpp" line="131"/>
         <source>Modifier le remplissage d&apos;une forme</source>
-        <translation type="unfinished"></translation>
+        <translation>Zmiana wypełnienia</translation>
     </message>
     <message>
         <location filename="../sources/ui/shapegraphicsitempropertieswidget.cpp" line="142"/>
         <source>Fermer le polygone</source>
-        <translation type="unfinished"></translation>
+        <translation>Zamknij wielokąt</translation>
     </message>
 </context>
 <context>