Move GUI theme instance to the config object (after app creation)

tests/test_dialogs/test_dlg_about.py

@@ -34,8 +34,6 @@ from novelwriter.dialogs.about import GuiAbout
 def testDlgAbout_NWDialog(qtbot, monkeypatch, nwGUI):
     """Test the novelWriter about dialogs."""
     # NW About
-    nwGUI.mainTheme.themeName = "A Theme"
-    nwGUI.mainTheme.themeAuthor = "An Author"
     assert nwGUI.showAboutNWDialog(showNotes=True) is True
 
     qtbot.waitUntil(lambda: getGuiItem("GuiAbout") is not None, timeout=1000)

tests/test_gui/test_gui_theme.py

@@ -33,14 +33,12 @@ from PyQt5.QtWidgets import QApplication
 from novelwriter import CONFIG
 from novelwriter.enum import nwItemClass, nwItemLayout, nwItemType
 from novelwriter.constants import nwLabels
-from novelwriter.gui.theme import GuiIcons, GuiTheme
 
 
 @pytest.mark.gui
 def testGuiTheme_Main(qtbot, nwGUI, tstPaths):
-    """Test the theme class init.
-    """
-    mainTheme: GuiTheme = nwGUI.mainTheme
+    """Test the theme class init."""
+    mainTheme = CONFIG.theme
 
     # Methods
     # =======
@@ -123,7 +121,7 @@ def testGuiTheme_Main(qtbot, nwGUI, tstPaths):
 @pytest.mark.gui
 def testGuiTheme_Theme(qtbot, monkeypatch, nwGUI):
     """Test the theme part of the class."""
-    mainTheme: GuiTheme = nwGUI.mainTheme
+    mainTheme = CONFIG.theme
 
     # List Themes
     # ===========
@@ -200,9 +198,8 @@ def testGuiTheme_Theme(qtbot, monkeypatch, nwGUI):
 
 @pytest.mark.gui
 def testGuiTheme_Syntax(qtbot, monkeypatch, nwGUI):
-    """Test the syntax part of the class.
-    """
-    mainTheme: GuiTheme = nwGUI.mainTheme
+    """Test the syntax part of the class."""
+    mainTheme = CONFIG.theme
 
     # List Themes
     # ===========
@@ -266,9 +263,8 @@ def testGuiTheme_Syntax(qtbot, monkeypatch, nwGUI):
 
 @pytest.mark.gui
 def testGuiTheme_Icons(qtbot, caplog, monkeypatch, nwGUI, tstPaths):
-    """Test the icon cache class.
-    """
-    iconCache: GuiIcons = nwGUI.mainTheme.iconCache
+    """Test the icon cache class."""
+    iconCache = CONFIG.theme.iconCache
 
     # Load Theme
     # ==========