diff --git a/CHANGELOG.md b/CHANGELOG.md
index 00fa0320..d97cbc40 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,8 @@ CHANGELOG for FlatCAM Evo beta
 - replaced all the FCLabel widgets that have color HTML with the new FCLabel widget that uses parameters for 'color' and weight
 - minor changes
 - added a way to allow patching FCLabel widget colors for certain cases without having to pass them each instance 
+- some changes in the theme selection, added that the default situation is where no theme is applied
+- some string changes
 
 17.04.2022
 
diff --git a/appEditors/geo_plugins/GeoCopyPlugin.py b/appEditors/geo_plugins/GeoCopyPlugin.py
index 4cc079cc..1100e82f 100644
--- a/appEditors/geo_plugins/GeoCopyPlugin.py
+++ b/appEditors/geo_plugins/GeoCopyPlugin.py
@@ -496,7 +496,7 @@ class CopyEditorUI:
             self.rows.valueChanged.connect(self.on_rows_cols_value_changed)
             self.columns.valueChanged.connect(self.on_rows_cols_value_changed)
 
-            self.app.inform.emit(_("Click to place ..."))
+            self.app.inform.emit(_("Click on reference location ..."))
         else:
             if val == 'linear':
                 self.array_circular_frame.hide()
@@ -505,7 +505,7 @@ class CopyEditorUI:
                 self.spacing_frame.hide()
                 self.offset_frame.hide()
 
-                self.app.inform.emit(_("Click to place ..."))
+                self.app.inform.emit(_("Click on reference location ..."))
             else:   # 'circular'
                 self.array_circular_frame.show()
                 self.array_linear_frame.hide()
diff --git a/appGUI/PlotCanvas.py b/appGUI/PlotCanvas.py
index 2ba5003b..0d40cf9f 100644
--- a/appGUI/PlotCanvas.py
+++ b/appGUI/PlotCanvas.py
@@ -54,14 +54,14 @@ class PlotCanvas(QtCore.QObject, VisPyCanvas):
         if settings.contains("theme"):
             theme = settings.value('theme', type=str)
         else:
-            theme = 'light'
+            theme = 'default'
 
         if settings.contains("dark_canvas"):
             dark_canvas = settings.value('dark_canvas', type=bool)
         else:
-            dark_canvas = True
+            dark_canvas = False
 
-        if theme == 'light' and not dark_canvas:
+        if (theme == 'default' or theme == 'light') and not dark_canvas:
             self.line_color = (0.3, 0.0, 0.0, 1.0)
             # self.rect_hud_color = Color('#0000FF10')
             self.rect_hud_color = Color('#80808040')
@@ -389,14 +389,14 @@ class PlotCanvas(QtCore.QObject, VisPyCanvas):
         if settings.contains("theme"):
             theme = settings.value('theme', type=str)
         else:
-            theme = 'light'
+            theme = 'default'
 
         if settings.contains("dark_canvas"):
             dark_canvas = settings.value('dark_canvas', type=bool)
         else:
-            dark_canvas = True
+            dark_canvas = False
 
-        if theme == 'light' and not dark_canvas:
+        if (theme == 'default' or theme == 'light') and not dark_canvas:
             color = 'dimgray'
         else:
             color = '#dededeff'
diff --git a/appGUI/PlotCanvas3d.py b/appGUI/PlotCanvas3d.py
index 1c3d6e13..748b459c 100644
--- a/appGUI/PlotCanvas3d.py
+++ b/appGUI/PlotCanvas3d.py
@@ -66,19 +66,19 @@ class PlotCanvas3d(QtCore.QObject, scene.SceneCanvas):
         if settings.contains("theme"):
             theme = settings.value('theme', type=str)
         else:
-            theme = 'light'
+            theme = 'default'
 
         if settings.contains("dark_canvas"):
             dark_canvas = settings.value('dark_canvas', type=bool)
         else:
-            dark_canvas = True
+            dark_canvas = False
 
         if settings.contains("axis_font_size"):
             a_fsize = settings.value('axis_font_size', type=int)
         else:
             a_fsize = 8
 
-        if theme == 'light' and not dark_canvas:
+        if (theme == 'default' or theme == 'light') and not dark_canvas:
             theme_color = Color('#FFFFFF')
             tick_color = Color('#000000')
             back_color = str(QPalette().color(QPalette.ColorRole.Window).name())
diff --git a/appGUI/PlotCanvasLegacy.py b/appGUI/PlotCanvasLegacy.py
index 45d34023..17590476 100644
--- a/appGUI/PlotCanvasLegacy.py
+++ b/appGUI/PlotCanvasLegacy.py
@@ -86,14 +86,14 @@ class CanvasCache(QtCore.QObject):
         if settings.contains("theme"):
             theme = settings.value('theme', type=str)
         else:
-            theme = 'light'
+            theme = 'default'
 
         if settings.contains("dark_canvas"):
             dark_canvas = settings.value('dark_canvas', type=bool)
         else:
-            dark_canvas = True
+            dark_canvas = False
 
-        if theme == 'light' and not dark_canvas:
+        if (theme == 'default' or theme == 'light') and not dark_canvas:
             self.axes.set_facecolor('#FFFFFF')
         else:
             self.axes.set_facecolor('#000000')
@@ -165,7 +165,7 @@ class PlotCanvasLegacy(QtCore.QObject):
 
         self.app = app
 
-        if self.app.options['global_theme'] == 'light':
+        if self.app.options['global_theme'] in ['default', 'light']:
             theme_color = '#FFFFFF'
             tick_color = '#000000'
             self.rect_hud_color = '#0000FF10'
@@ -457,7 +457,7 @@ class PlotCanvasLegacy(QtCore.QObject):
             super().__init__()
 
             self.p = plotcanvas
-            units = self.p.app.app_units
+            # units = self.p.app.app_units
             # self._text = 'Dx:    %s [%s]\nDy:    %s [%s]\n\nX:      %s [%s]\nY:      %s [%s]' % \
             #              ('0.0000', units, '0.0000', units, '0.0000', units, '0.0000', units)
             self.on_update_text_hud()
diff --git a/appGUI/VisPyCanvas.py b/appGUI/VisPyCanvas.py
index 991f3546..35d86aa4 100644
--- a/appGUI/VisPyCanvas.py
+++ b/appGUI/VisPyCanvas.py
@@ -39,14 +39,14 @@ class VisPyCanvas(scene.SceneCanvas):
         if settings.contains("theme"):
             theme = settings.value('theme', type=str)
         else:
-            theme = 'light'
+            theme = 'default'
 
         if settings.contains("dark_canvas"):
             dark_canvas = settings.value('dark_canvas', type=bool)
         else:
-            dark_canvas = True
+            dark_canvas = False
 
-        if theme == 'light' and not dark_canvas:
+        if (theme == 'default' or theme == 'light') and not dark_canvas:
             theme_color = Color('#FFFFFF')
             tick_color = Color('#000000')
             back_color = str(QPalette().color(QPalette.ColorRole.Window).name())
@@ -102,15 +102,15 @@ class VisPyCanvas(scene.SceneCanvas):
         if settings.contains("theme"):
             theme = settings.value('theme', type=str)
         else:
-            theme = 'light'
+            theme = 'default'
 
         if settings.contains("dark_canvas"):
             dark_canvas = settings.value('dark_canvas', type=bool)
         else:
-            dark_canvas = True
+            dark_canvas = False
 
         self.view = view
-        if theme == 'light' and not dark_canvas:
+        if (theme == 'default' or theme == 'light') and not dark_canvas:
             self.grid = scene.GridLines(parent=self.view.scene, color='dimgray')
         else:
             self.grid = scene.GridLines(parent=self.view.scene, color='#dededeff')
diff --git a/appGUI/preferences/general/GeneralAPPSetGroupUI.py b/appGUI/preferences/general/GeneralAPPSetGroupUI.py
index 2ec99b73..b7d92edf 100644
--- a/appGUI/preferences/general/GeneralAPPSetGroupUI.py
+++ b/appGUI/preferences/general/GeneralAPPSetGroupUI.py
@@ -496,14 +496,14 @@ class GeneralAPPSetGroupUI(OptionsGroupUI):
             if theme_settings.contains("theme"):
                 theme = theme_settings.value('theme', type=str)
             else:
-                theme = 'light'
+                theme = 'default'
 
             if theme_settings.contains("dark_canvas"):
                 dark_canvas = theme_settings.value('dark_canvas', type=bool)
             else:
-                dark_canvas = True
+                dark_canvas = False
 
-            if theme == 'light' and not dark_canvas:
+            if (theme == 'default' or theme == 'light') and not dark_canvas:
                 self.app.cursor_color_3D = 'black'
             else:
                 self.app.cursor_color_3D = 'gray'
diff --git a/appGUI/preferences/general/GeneralAppSettingsGroupUI.py b/appGUI/preferences/general/GeneralAppSettingsGroupUI.py
index 93ba5780..60bbc5fa 100644
--- a/appGUI/preferences/general/GeneralAppSettingsGroupUI.py
+++ b/appGUI/preferences/general/GeneralAppSettingsGroupUI.py
@@ -292,14 +292,14 @@ class GeneralAppSettingsGroupUI(OptionsGroupUI2):
             if theme_settings.contains("theme"):
                 theme = theme_settings.value('theme', type=str)
             else:
-                theme = 'light'
+                theme = 'default'
 
             if theme_settings.contains("dark_canvas"):
                 dark_canvas = theme_settings.value('dark_canvas', type=bool)
             else:
-                dark_canvas = True
+                dark_canvas = False
 
-            if theme == 'light' and not dark_canvas:
+            if (theme == 'default' or theme == 'light') and not dark_canvas:
                 self.app.cursor_color_3D = 'black'
             else:
                 self.app.cursor_color_3D = 'gray'
diff --git a/appGUI/preferences/general/GeneralGUIPrefGroupUI.py b/appGUI/preferences/general/GeneralGUIPrefGroupUI.py
index bec7d99e..e846d1e0 100644
--- a/appGUI/preferences/general/GeneralGUIPrefGroupUI.py
+++ b/appGUI/preferences/general/GeneralGUIPrefGroupUI.py
@@ -42,21 +42,24 @@ class GeneralGUIPrefGroupUI(OptionsGroupUI):
         )
 
         self.appearance_radio = RadioSet([
-            {"label": _("OS Dependent"), "value": "auto"},
+            {"label": _("Default"), "value": "default"},
+            {"label": _("Auto"), "value": "auto"},
             {"label": _("Light"), "value": "light"},
             {"label": _("Dark"), "value": "dark"}
         ], compact=True)
         self.appearance_radio.setToolTip(
-            _("OS Dependent: Matches mode from OS\n"
+            _("The theme can be:\n"
+              "Default: Default theme\n"
+              "Auto: Matches mode from OS\n"
               "Light: Light mode\n"
               "Dark: Dark mode")
         )
 
         # Dark Canvas
-        self.dark_canvas_cb = FCCheckBox('%s' % _('Always use dark canvas'))
+        self.dark_canvas_cb = FCCheckBox('%s' % _('Dark Canvas'))
         self.dark_canvas_cb.setToolTip(
-            _("Check this box to always use Dark canvas\n"
-              "even if Light theme is selected.")
+            _("Check this box to force the use of dark canvas\n"
+              "even if a dark theme is not selected.")
         )
 
         grid0.addWidget(self.appearance_label, 0, 0, 1, 2)
diff --git a/appMain.py b/appMain.py
index 8632f289..aed6b931 100644
--- a/appMain.py
+++ b/appMain.py
@@ -619,7 +619,9 @@ class App(QtCore.QObject):
             else:
                 theme = 'light'
         else:
-            if self.options["global_appearance"] == 'dark':
+            if self.options["global_appearance"] == 'default':
+                theme = 'default'
+            elif self.options["global_appearance"] == 'dark':
                 theme = 'dark'
             else:
                 theme = 'light'
@@ -634,7 +636,9 @@ class App(QtCore.QObject):
         else:
             self.decimals = int(self.options['decimals_inch'])
 
-        if self.options["global_theme"] == 'light':
+        if self.options["global_theme"] == 'default':
+            self.resource_location = 'assets/resources'
+        elif self.options["global_theme"] == 'light':
             self.resource_location = 'assets/resources'
             self.qapp.setStyleSheet(qdarktheme.load_stylesheet('light'))
         else:
@@ -1040,12 +1044,12 @@ class App(QtCore.QObject):
         if self.options["global_cursor_color_enabled"]:
             self.cursor_color_3D = self.options["global_cursor_color"]
         else:
-            if theme == 'light' and not self.options["global_dark_canvas"]:
+            if (theme == 'light' or theme == 'default') and not self.options["global_dark_canvas"]:
                 self.cursor_color_3D = 'black'
             else:
                 self.cursor_color_3D = 'gray'
 
-        # update the options dict with the setting in QSetting
+        # update the 'options' dict with the setting in QSetting
         self.options['global_theme'] = theme
 
         # ########################
diff --git a/appPlugins/ToolDistance.py b/appPlugins/ToolDistance.py
index e27d3697..a7f4ec28 100644
--- a/appPlugins/ToolDistance.py
+++ b/appPlugins/ToolDistance.py
@@ -764,20 +764,20 @@ class Distance(AppTool):
         if settings.contains("theme"):
             theme = settings.value('theme', type=str)
         else:
-            theme = 'light'
+            theme = 'default'
 
         if settings.contains("dark_canvas"):
             dark_canvas = settings.value('dark_canvas', type=bool)
         else:
-            dark_canvas = True
+            dark_canvas = False
 
         if self.app.use_3d_engine:
-            if theme == 'light' and not dark_canvas:
+            if (theme == 'default' or theme == 'light') and not dark_canvas:
                 color = '#000000FF'
             else:
                 color = '#FFFFFFFF'
         else:
-            if theme == 'light' and not dark_canvas:
+            if (theme == 'default' or theme == 'light') and not dark_canvas:
                 color = '#000000'
             else:
                 color = '#FFFFFF'
diff --git a/defaults.py b/defaults.py
index f8f16e25..2cd38352 100644
--- a/defaults.py
+++ b/defaults.py
@@ -112,8 +112,9 @@ class AppDefaults:
         "global_tpdf_rmargin": 20.0,
 
         # General GUI Preferences
-        "global_appearance": 'auto',
-        "global_dark_canvas": True,
+        "global_appearance": 'default',
+        "global_dark_canvas": False,
+        "global_theme": 'default',
 
         "global_layout": "compact",
         "global_hover_shape": False,