added icon for the application window (also added eye.svg, that I forgot to add to git)

Implementace/resources/icons/eye.svg

+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24"><path d="M15 12c0 1.657-1.343 3-3 3s-3-1.343-3-3c0-.199.02-.393.057-.581 1.474.541 2.927-.882 2.405-2.371.174-.03.354-.048.538-.048 1.657 0 3 1.344 3 3zm-2.985-7c-7.569 0-12.015 6.551-12.015 6.551s4.835 7.449 12.015 7.449c7.733 0 11.985-7.449 11.985-7.449s-4.291-6.551-11.985-6.551zm-.015 12c-2.761 0-5-2.238-5-5 0-2.761 2.239-5 5-5 2.762 0 5 2.239 5 5 0 2.762-2.238 5-5 5z"/></svg>
\ No newline at end of file

Implementace/resources/icons/group.svg

+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24"><path d="M10.644 17.08c2.866-.662 4.539-1.241 3.246-3.682-3.932-7.427-1.042-11.398 3.111-11.398 4.235 0 7.054 4.124 3.11 11.398-1.332 2.455.437 3.034 3.242 3.682 2.483.574 2.647 1.787 2.647 3.889v1.031h-18c0-2.745-.22-4.258 2.644-4.92zm-12.644 4.92h7.809c-.035-8.177 3.436-5.313 3.436-11.127 0-2.511-1.639-3.873-3.748-3.873-3.115 0-5.282 2.979-2.333 8.549.969 1.83-1.031 2.265-3.181 2.761-1.862.43-1.983 1.34-1.983 2.917v.773z"/></svg>
\ No newline at end of file

Implementace/resources/resources.qrc

@@ -12,5 +12,6 @@
         <file>icons/print.svg</file>
         <file>icons/save.svg</file>
         <file>icons/eye.svg</file>
+        <file>icons/group.svg</file>
     </qresource>
 </RCC>

Implementace/windows/mainwindow.py

@@ -18,6 +18,9 @@ class Ui_MainWindow(object):
         sizePolicy.setHeightForWidth(MainWindow.sizePolicy().hasHeightForWidth())
         MainWindow.setSizePolicy(sizePolicy)
         MainWindow.setMinimumSize(QtCore.QSize(800, 600))
+        icon = QtGui.QIcon()
+        icon.addPixmap(QtGui.QPixmap(":/icons/group.svg"), QtGui.QIcon.Normal, QtGui.QIcon.Off)
+        MainWindow.setWindowIcon(icon)
         self.centralWidget = QtWidgets.QWidget(MainWindow)
         self.centralWidget.setObjectName("centralWidget")
         self.verticalLayout_2 = QtWidgets.QVBoxLayout(self.centralWidget)
@@ -45,3 +48,4 @@ class Ui_MainWindow(object):
         _translate = QtCore.QCoreApplication.translate
         MainWindow.setWindowTitle(_translate("MainWindow", "Grou.py"))
+import resources_rc

Implementace/windows/qt/mainwindow.ui

@@ -25,6 +25,10 @@
   <property name="windowTitle">
    <string>Grou.py</string>
   </property>
+  <property name="windowIcon">
+   <iconset resource="../../resources/resources.qrc">
+    <normaloff>:/icons/group.svg</normaloff>:/icons/group.svg</iconset>
+  </property>
   <widget class="QWidget" name="centralWidget">
    <layout class="QVBoxLayout" name="verticalLayout_2">
     <property name="topMargin">
@@ -54,6 +58,8 @@
   </widget>
  </widget>
  <layoutdefault spacing="6" margin="11"/>
- <resources/>
+ <resources>
+  <include location="../../resources/resources.qrc"/>
+ </resources>
  <connections/>
 </ui>