Fixed error/bug when hitting the CTRL Modifier key before entering the main window with the mouse.

world_regions_widget/__init__.py

@@ -151,7 +151,12 @@ class WorldRegionsWidget(QScrollArea):
     def trigger_cursor_change(self, event=None):
         modifiers = QApplication.keyboardModifiers()
         if modifiers == Qt.ControlModifier or (event is not None and event.key() in (16777249, 16777250)):
-            if self.currently_hovered_region.is_marked:
+            try:
+                currently_hovered_region_is_marked = self.currently_hovered_region.is_marked
+            except AttributeError:
+                currently_hovered_region_is_marked = None
+
+            if currently_hovered_region_is_marked:
                 self.setCursor(self.cursor_remove_region)
             else:
                 self.setCursor(self.cursor_add_region)

world_regions_widget/region_label_collection.py

@@ -5,8 +5,6 @@ from PyQt5.QtWidgets import (
 
 from .region_label import RegionLabel
 
-from formatter import Formatter
-
 
 class RegionLabelCollection(QGridLayout):
     label_collection = dict