diff --git a/css/styles.css b/css/styles.css
index 92fd33c4..27d217e2 100644
--- a/css/styles.css
+++ b/css/styles.css
@@ -61,9 +61,6 @@ radio {
 .roundedcorners {
   border-radius: 8px;
 }
-.adwthemedark scale trough highlight {
-  filter: brightness(120%);
-}
 
 .videowidget {
   min-width: 320px;
diff --git a/src/appBase.js b/src/appBase.js
index 7afcd015..c5ea5c13 100644
--- a/src/appBase.js
+++ b/src/appBase.js
@@ -111,7 +111,6 @@ class ClapperAppBase extends Gtk.Application
     {
         const theme = gtkSettings.gtk_theme_name;
         const window = this.active_window;
-        const hasAdwThemeDark = window.has_css_class('adwthemedark');
 
         debug(`user selected theme: ${theme}`);
 
@@ -119,17 +118,6 @@ class ClapperAppBase extends Gtk.Application
            Having 2/4 corners rounded in floating mode is not good. */
         if(!window.has_css_class('adwrounded'))
             window.add_css_class('adwrounded');
-
-        if(theme.startsWith('Adwaita') || theme.startsWith('Default')) {
-            const isDarkTheme = settings.get_boolean('dark-theme');
-
-            if(isDarkTheme && !hasAdwThemeDark)
-                window.add_css_class('adwthemedark');
-            else if(!isDarkTheme && hasAdwThemeDark)
-                window.remove_css_class('adwthemedark');
-        }
-        else if(hasAdwThemeDark)
-            window.remove_css_class('adwthemedark');
     }
 
     _onIconThemeChanged(gtkSettings)