use same icon for about dialog

aboutdialog.py

@@ -4,6 +4,7 @@ from PyQt6.QtCore import Qt
 from PyQt6.QtGui import QFont, QPixmap
 from PyQt6.QtWidgets import *
 
+import constants
 from label import Label
 from vbox import VBox
 
@@ -27,7 +28,7 @@ class AboutDialog(QDialog):
         version.setAlignment(Qt.AlignmentFlag.AlignLeft)
 
         app_icon = QLabel()
-        app_icon.setPixmap(QPixmap("icon7.png"))
+        app_icon.setPixmap(QPixmap(constants.raven_icon))
         heading = QWidget(self)
         hbox = QHBoxLayout(heading)
         hbox.addWidget(app_icon)

constants.py

@@ -0,0 +1 @@
+raven_icon = "icon7_gold3.png"

main.py

@@ -9,6 +9,7 @@ from PyQt6.QtCore import *
 from PyQt6.QtGui import *
 import sys
 
+import constants
 import urlutils
 from aboutdialog import AboutDialog
 from cutesettings import CuteSettings
@@ -23,7 +24,7 @@ MAX_LINE_LENGTH = 4096
 logging.basicConfig(level=logging.INFO)
 log = logging.getLogger("main")
 
-raven_icon = "icon7_gold3.png"
+
 
 
 class MainWindow(QMainWindow):
@@ -101,7 +102,7 @@ class MainWindow(QMainWindow):
     def help_menu(self) -> QMenu:
         help_menu = QMenu(self.tr("&Help", "name of the help menu"), self)
 
-        about_action = QAction(QIcon(raven_icon), self.tr("&About"), self)
+        about_action = QAction(QIcon(constants.raven_icon), self.tr("&About"), self)
         about_action.triggered.connect(lambda: AboutDialog().exec())
         help_menu.addAction(about_action)
 
@@ -190,7 +191,7 @@ def stop_signal(signum, _stackframe):
 
 if __name__ == "__main__":
     app = QApplication(sys.argv)
-    app.setWindowIcon(QIcon(raven_icon))  # works only for Linux
+    app.setWindowIcon(QIcon(constants.raven_icon))  # works only for Linux
 
     # make icon appear in Windows
     # see https://stackoverflow.com/questions/1551605/how-to-set-applications-taskbar-icon-in-windows-7/1552105#1552105