Now there are no dark themes in the drop-down lists for light themes and versa

src/utils.py

@@ -104,6 +104,32 @@ def make_kv_themes_list():
                     themes_list.append(theme_name)
     return themes_list
 
+def separate_themes(kv_themes_list, gtk3_themes_list):
+    kv_light_themes, kv_dark_themes = [], []
+    gtk3_light_themes, gtk3_dark_themes = [], []
+
+    def classify_theme(theme, light_themes, dark_themes, themes_list):
+        theme_lower = theme.lower()
+        if 'light' in theme_lower:
+            light_themes.append(theme)
+        elif 'dark' in theme_lower:
+            dark_themes.append(theme)
+        else:
+            if (theme + 'light').lower() in map(str.lower, themes_list):
+                dark_themes.append(theme)
+            elif (theme + 'dark').lower() in map(str.lower, themes_list):
+                light_themes.append(theme)
+            else:
+                light_themes.append(theme)
+
+    for theme in kv_themes_list:
+        classify_theme(theme, kv_light_themes, kv_dark_themes, kv_themes_list)
+
+    for theme in gtk3_themes_list:
+        classify_theme(theme, gtk3_light_themes, gtk3_dark_themes, gtk3_themes_list)
+
+    return kv_light_themes, kv_dark_themes, gtk3_light_themes, gtk3_dark_themes
+
 def find_string_index(lst, string):
     try:
         index = lst.index(string)

src/window.py

@@ -22,7 +22,7 @@
 #
 # SPDX-License-Identifier: MIT
 from .utils import write_config, configure_cr_widgets
-from .utils import make_gtk3_themes_list, make_kv_themes_list
+from .utils import make_gtk3_themes_list, make_kv_themes_list, separate_themes
 
 from gi.repository import Adw
 from gi.repository import Gtk, Gio
@@ -46,12 +46,14 @@ class XimperUnifiedThemeSwitcherGuiGtk4Window(Adw.ApplicationWindow):
         
         kv_themes_list = make_kv_themes_list()
         gtk3_themes_list = make_gtk3_themes_list()
+        
+        kv_light_themes_list, kv_dark_themes_list, gtk3_light_themes_list, gtk3_dark_themes_list = separate_themes(kv_themes_list, gtk3_themes_list)
 
         crs_configurations = [
-            (self.kv_light_cr, kv_themes_list, "KV_LIGHT_THEME"),
-            (self.kv_dark_cr, kv_themes_list, "KV_DARK_THEME"),
-            (self.gtk3_light_cr, gtk3_themes_list, "GTK3_LIGHT_THEME"),
-            (self.gtk3_dark_cr, gtk3_themes_list, "GTK3_DARK_THEME")
+            (self.kv_light_cr, kv_light_themes_list, "KV_LIGHT_THEME"),
+            (self.kv_dark_cr, kv_dark_themes_list, "KV_DARK_THEME"),
+            (self.gtk3_light_cr, gtk3_light_themes_list, "GTK3_LIGHT_THEME"),
+            (self.gtk3_dark_cr, gtk3_dark_themes_list, "GTK3_DARK_THEME")
         ]
         configure_cr_widgets(crs_configurations, self.cr_theme_selected)