diff --git a/data/Extra.css b/data/Extra.css
deleted file mode 100644
index b2014212..00000000
--- a/data/Extra.css
+++ /dev/null
@@ -1,11 +0,0 @@
-/* From elementary/stylesheet, src/gtk-3.0/_typography.scss */
-
-.h2 {
-    font-weight: 300;
-    font-size: 18pt;
-    letter-spacing: -0.05em;
-}
-
-.h3 {
-    font-size: 11pt;
-}
diff --git a/data/reco.gresource.xml b/data/reco.gresource.xml
index 71c84530..f76fe8f8 100644
--- a/data/reco.gresource.xml
+++ b/data/reco.gresource.xml
@@ -2,7 +2,6 @@
 <gresources>
   <gresource prefix="/com/github/ryonakano/reco">
     <file alias="Application.css">Application.css</file>
-    <file alias="Extra.css">Extra.css</file>
     <file compressed="true" preprocess="xml-stripblanks" alias="record-completed-symbolic.svg">icons/record-completed-symbolic.svg</file>
   </gresource>
 </gresources>
diff --git a/src/Application.vala b/src/Application.vala
index 4b04bd48..46569294 100644
--- a/src/Application.vala
+++ b/src/Application.vala
@@ -52,15 +52,6 @@ public class Application : Gtk.Application {
                                                    cssprovider,
                                                    Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION);
 
-        if (!Application.IS_ON_PANTHEON) {
-            var extra_cssprovider = new Gtk.CssProvider ();
-            extra_cssprovider.load_from_resource ("/com/github/ryonakano/reco/Extra.css");
-            // TODO: Deprecated in Gtk 4.10, buit no alternative api is provided so leave it for now
-            Gtk.StyleContext.add_provider_for_display (display,
-                                                       extra_cssprovider,
-                                                       Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION);
-        }
-
         // Load GResource for our custom icons
         var icon_theme = Gtk.IconTheme.get_for_display (display);
         icon_theme.add_resource_path ("/com/github/ryonakano/reco");