src/IRCPanel.py

@@ -14,15 +14,18 @@ class IRCPanel(wx.Panel):
         self.parent = parent
         self.main_frame = main_frame
         self.messages = []
+        self.theme = getattr(self.main_frame, "theme", None)
+        self.default_text_colour = self.theme["text"] if self.theme else wx.Colour(0, 0, 0)
         
         sizer = wx.BoxSizer(wx.VERTICAL)
         
         # Use a better font for chat with white theme
         self.text_ctrl = wx.TextCtrl(self, style=wx.TE_MULTILINE | wx.TE_READONLY | wx.TE_RICH2 | wx.TE_AUTO_URL)
         
-        # White theme colors
-        self.text_ctrl.SetBackgroundColour(wx.Colour(255, 255, 255))  # White background
-        self.text_ctrl.SetForegroundColour(wx.Colour(0, 0, 0))        # Black text
+        if self.theme:
+            self.text_ctrl.SetBackgroundColour(self.theme["content_bg"])
+            self.text_ctrl.SetForegroundColour(self.theme["text"])
+            self.SetBackgroundColour(self.theme["content_bg"])
         
         # Load appropriate font
         self.font = self.load_system_font()
@@ -143,7 +146,7 @@ class IRCPanel(wx.Panel):
             if message_color:
                 attr.SetTextColour(message_color)
             else:
-                attr.SetTextColour(wx.Colour(0, 0, 0))  # Black text for white theme
+                attr.SetTextColour(self.default_text_colour)
             
             attr.SetFont(self.font)
             self.text_ctrl.SetDefaultStyle(attr)
@@ -169,7 +172,7 @@ class IRCPanel(wx.Panel):
                 self.add_message(message, f"* {username}", username_color, wx.Colour(128, 0, 128), italic=True)  # Dark purple for actions
             else:
                 message = f"{timestamp}<{username}> {content}"
-                self.add_message(message, f"<{username}>", username_color, wx.Colour(0, 0, 0))  # Black text
+                self.add_message(message, f"<{username}>", username_color, self.default_text_colour)
         except Exception as e:
             logger.error(f"Error adding formatted message: {e}")
     

src/NotesDialog.py

@@ -19,6 +19,7 @@ class NotesDialog(wx.Frame):
                         style=wx.DEFAULT_FRAME_STYLE)
         
         self.parent = parent
+        self.theme = getattr(parent, "theme", None)
         self.notes_data = notes_data or defaultdict(dict)
         self.current_note_key = None
         self.updating_title = False
@@ -27,7 +28,7 @@ class NotesDialog(wx.Frame):
         self.last_save_time = time.time()
         self.auto_save_interval = 2  # seconds - reduced for immediate saving
         
-        self.SetBackgroundColour(wx.Colour(245, 245, 245))
+        self.SetBackgroundColour(self.get_theme_colour("window_bg", wx.SystemSettings().GetColour(wx.SYS_COLOUR_WINDOW)))
         
         # Set icon if parent has one
         if parent:
@@ -61,6 +62,11 @@ class NotesDialog(wx.Frame):
         if self.GetParent().GetId() == pId:
             self.GetParent().Close()
     
+    def get_theme_colour(self, key, fallback):
+        if self.theme and key in self.theme:
+            return self.theme[key]
+        return fallback
+
     def create_controls(self):
         # Create menu bar
         self.create_menu_bar()
@@ -72,6 +78,7 @@ class NotesDialog(wx.Frame):
         
         # Left panel - notes list
         left_panel = wx.Panel(splitter)
+        left_panel.SetBackgroundColour(self.get_theme_colour("sidebar_bg", left_panel.GetBackgroundColour()))
         left_sizer = wx.BoxSizer(wx.VERTICAL)
         
         notes_label = wx.StaticText(left_panel, label="Your Notes:")
@@ -101,6 +108,7 @@ class NotesDialog(wx.Frame):
         
         # Right panel - editor
         right_panel = wx.Panel(splitter)
+        right_panel.SetBackgroundColour(self.get_theme_colour("content_bg", right_panel.GetBackgroundColour()))
         right_sizer = wx.BoxSizer(wx.VERTICAL)
         
         title_label = wx.StaticText(right_panel, label="Note Title:")
@@ -226,6 +234,7 @@ class NotesDialog(wx.Frame):
         
     def setup_editor_toolbar(self, parent):
         self.toolbar = wx.Panel(parent)
+        self.toolbar.SetBackgroundColour(self.get_theme_colour("control_bg", self.toolbar.GetBackgroundColour()))
         toolbar_sizer = wx.BoxSizer(wx.HORIZONTAL)
         
         # Text formatting buttons

src/main.py

@@ -43,8 +43,9 @@ class IRCFrame(wx.Frame):
     def __init__(self):
         super().__init__(None, title="wxIRC", size=(1200, 700))
         
-        # Apply white theme
-        self.apply_white_theme()
+        # Determine platform theme once
+        self.theme = self.build_theme()
+        self.apply_theme()
         
         # Show privacy notice first
         self.show_privacy_notice()
@@ -121,18 +122,69 @@ class IRCFrame(wx.Frame):
         self.Bind(wx.EVT_MENU, self.on_find_previous, id=1002)
         self.Bind(wx.EVT_MENU, self.on_quick_escape, id=1003)
     
-    def apply_white_theme(self):
-        """Apply white theme to the application"""
+    def build_theme(self):
+        """Build a small theme descriptor that respects the host platform."""
         try:
-            # Set system colors for white theme
-            self.SetBackgroundColour(wx.Colour(255, 255, 255))
-            self.SetForegroundColour(wx.Colour(0, 0, 0))
-            
-            # Set system settings for light theme
             sys_settings = wx.SystemSettings()
+            system_window = sys_settings.GetColour(wx.SYS_COLOUR_WINDOW)
+            system_text = sys_settings.GetColour(wx.SYS_COLOUR_WINDOWTEXT)
+            system_face = sys_settings.GetColour(wx.SYS_COLOUR_BTNFACE)
             
+            is_windows = wx.Platform == "__WXMSW__"
+            if is_windows:
+                window_bg = wx.Colour(255, 255, 255)
+                control_bg = wx.Colour(240, 240, 240)
+                text = wx.Colour(0, 0, 0)
+            else:
+                window_bg = system_window
+                control_bg = system_face
+                text = system_text
+            
+            sidebar_delta = 15 if self._is_light_colour(window_bg) else -20
+            sidebar_bg = self._adjust_colour(control_bg if control_bg.IsOk() else window_bg, sidebar_delta)
+            
+            return {
+                "window_bg": window_bg,
+                "content_bg": window_bg,
+                "text": text,
+                "sidebar_bg": sidebar_bg,
+                "control_bg": control_bg if control_bg.IsOk() else window_bg,
+                "force_light": is_windows,
+            }
         except Exception as e:
-            logger.error(f"Error applying white theme: {e}")
+            logger.error(f"Error building theme: {e}")
+            # Fallback to a simple light theme
+            return {
+                "window_bg": wx.Colour(255, 255, 255),
+                "content_bg": wx.Colour(255, 255, 255),
+                "text": wx.Colour(0, 0, 0),
+                "sidebar_bg": wx.Colour(240, 240, 240),
+                "control_bg": wx.Colour(240, 240, 240),
+                "force_light": True,
+            }
+    
+    def _is_light_colour(self, colour):
+        """Simple luminance check to know if a colour is light."""
+        luminance = 0.299 * colour.Red() + 0.587 * colour.Green() + 0.114 * colour.Blue()
+        return luminance >= 128
+    
+    def _adjust_colour(self, colour, delta):
+        """Lighten or darken a colour by delta."""
+        def clamp(value):
+            return max(0, min(255, value))
+        return wx.Colour(
+            clamp(colour.Red() + delta),
+            clamp(colour.Green() + delta),
+            clamp(colour.Blue() + delta),
+        )
+    
+    def apply_theme(self):
+        """Apply the detected theme."""
+        try:
+            self.SetBackgroundColour(self.theme["window_bg"])
+            self.SetForegroundColour(self.theme["text"])
+        except Exception as e:
+            logger.error(f"Error applying theme: {e}")
     
     def show_privacy_notice(self):
         """Show privacy notice dialog at startup"""
@@ -199,12 +251,12 @@ class IRCFrame(wx.Frame):
     def setup_ui(self):
         """Setup UI components with white theme"""
         panel = wx.Panel(self)
-        panel.SetBackgroundColour(wx.Colour(255, 255, 255))  # White background
+        panel.SetBackgroundColour(self.theme["window_bg"])
         main_sizer = wx.BoxSizer(wx.HORIZONTAL)
         
         # Left sidebar - light gray for contrast
         left_panel = wx.Panel(panel)
-        left_panel.SetBackgroundColour(wx.Colour(240, 240, 240))  # Light gray
+        left_panel.SetBackgroundColour(self.theme["sidebar_bg"])
         left_sizer = wx.BoxSizer(wx.VERTICAL)
         
         conn_box = wx.StaticBox(left_panel, label="Connection")
@@ -270,7 +322,7 @@ class IRCFrame(wx.Frame):
         
         # Center - Notebook
         self.notebook = wx.Notebook(panel)
-        self.notebook.SetBackgroundColour(wx.Colour(255, 255, 255))
+        self.notebook.SetBackgroundColour(self.theme["content_bg"])
         
         # Server panel
         server_panel = IRCPanel(self.notebook, self)
@@ -280,7 +332,7 @@ class IRCFrame(wx.Frame):
         
         # Right sidebar - Users - light gray for contrast
         right_panel = wx.Panel(panel)
-        right_panel.SetBackgroundColour(wx.Colour(240, 240, 240))  # Light gray
+        right_panel.SetBackgroundColour(self.theme["sidebar_bg"])
         right_sizer = wx.BoxSizer(wx.VERTICAL)
         
         users_box = wx.StaticBox(right_panel, label="Users")