properly add icon - and fix main_gui size

src/main_window.py

@@ -1,4 +1,4 @@
-from PyQt6.QtGui import QIntValidator
+from PyQt6.QtGui import QIntValidator, QIcon
 from PyQt6.QtWidgets import QMainWindow, QWidget
 from PyQt6 import uic
 
@@ -12,6 +12,7 @@ class SIPPCompare(QMainWindow):
         super().__init__()
         # Import Qt Designer UI XML file
         uic.loadUi(resource_finder.get_res_path("gui/main_gui.ui"), self)
+        self.setWindowIcon(QIcon(resource_finder.get_res_path("icon2.ico")))
 
         # Initialise class variables
         # Inputs

src/output_window.py

@@ -1,3 +1,4 @@
+from PyQt6.QtGui import QIcon
 from PyQt6.QtWidgets import QWidget
 from PyQt6 import uic
 
@@ -12,6 +13,7 @@ class OutputWindow(QWidget):
         super().__init__()
         # Import Qt Designer UI XML file
         uic.loadUi(resource_finder.get_res_path("gui/output_window.ui"), self)
+        self.setWindowIcon(QIcon(resource_finder.get_res_path("icon2.ico")))
 
         # Initialise class variables
         self.results_str = ""

src/platform_edit.py

@@ -1,5 +1,5 @@
 from PyQt6.QtCore import QRegularExpression
-from PyQt6.QtGui import QRegularExpressionValidator, QFont
+from PyQt6.QtGui import QRegularExpressionValidator, QFont, QIcon
 from PyQt6.QtWidgets import QWidget, QLabel
 from PyQt6 import uic
 
@@ -13,6 +13,7 @@ class PlatformEdit(QWidget):
         super().__init__()
         # Import Qt Designer UI XML file
         uic.loadUi(resource_finder.get_res_path("gui/platform_edit.ui"), self)
+        self.setWindowIcon(QIcon(resource_finder.get_res_path("icon2.ico")))
 
         # Initialise class variables
         # Create main window object, passing this instance as param