diff --git a/src/app/browser/about.rs b/src/app/browser/about.rs
index 466b5a3f..812c864e 100644
--- a/src/app/browser/about.rs
+++ b/src/app/browser/about.rs
@@ -5,6 +5,12 @@ pub struct About {
     gobject: AboutDialog,
 }
 
+impl Default for About {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl About {
     // Construct
     pub fn new() -> Self {
diff --git a/src/app/browser/action.rs b/src/app/browser/action.rs
index bbd1ac1e..02bb5684 100644
--- a/src/app/browser/action.rs
+++ b/src/app/browser/action.rs
@@ -33,6 +33,12 @@ pub struct Action {
     pub simple_action_group: SimpleActionGroup,
 }
 
+impl Default for Action {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Action {
     // Constructors
 
diff --git a/src/app/browser/action/about.rs b/src/app/browser/action/about.rs
index efef4bd8..dff147e7 100644
--- a/src/app/browser/action/about.rs
+++ b/src/app/browser/action/about.rs
@@ -5,6 +5,12 @@ pub struct About {
     pub simple_action: SimpleAction,
 }
 
+impl Default for About {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl About {
     // Constructors
 
diff --git a/src/app/browser/action/close.rs b/src/app/browser/action/close.rs
index b7a5711d..8a076e66 100644
--- a/src/app/browser/action/close.rs
+++ b/src/app/browser/action/close.rs
@@ -5,6 +5,12 @@ pub struct Close {
     pub simple_action: SimpleAction,
 }
 
+impl Default for Close {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Close {
     // Constructors
 
diff --git a/src/app/browser/action/debug.rs b/src/app/browser/action/debug.rs
index 48c2ece4..9f720614 100644
--- a/src/app/browser/action/debug.rs
+++ b/src/app/browser/action/debug.rs
@@ -5,6 +5,12 @@ pub struct Debug {
     pub simple_action: SimpleAction,
 }
 
+impl Default for Debug {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Debug {
     // Constructors
 
diff --git a/src/app/browser/action/escape.rs b/src/app/browser/action/escape.rs
index d57c97d5..23d28e6d 100644
--- a/src/app/browser/action/escape.rs
+++ b/src/app/browser/action/escape.rs
@@ -9,6 +9,12 @@ pub struct Escape {
     pub simple_action: SimpleAction,
 }
 
+impl Default for Escape {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Escape {
     // Constructors
 
diff --git a/src/app/browser/action/profile.rs b/src/app/browser/action/profile.rs
index e46d1164..1bb000ad 100644
--- a/src/app/browser/action/profile.rs
+++ b/src/app/browser/action/profile.rs
@@ -5,6 +5,12 @@ pub struct Profile {
     pub simple_action: SimpleAction,
 }
 
+impl Default for Profile {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Profile {
     // Constructors
 
diff --git a/src/app/browser/action/update.rs b/src/app/browser/action/update.rs
index 1cd7b18a..34fdc805 100644
--- a/src/app/browser/action/update.rs
+++ b/src/app/browser/action/update.rs
@@ -9,6 +9,12 @@ pub struct Update {
     pub simple_action: SimpleAction,
 }
 
+impl Default for Update {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Update {
     // Constructors
 
diff --git a/src/app/browser/window/action.rs b/src/app/browser/window/action.rs
index 74ae9cd0..d3d03d0e 100644
--- a/src/app/browser/window/action.rs
+++ b/src/app/browser/window/action.rs
@@ -56,6 +56,12 @@ pub struct Action {
     pub simple_action_group: SimpleActionGroup,
 }
 
+impl Default for Action {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Action {
     // Constructors
 
diff --git a/src/app/browser/window/action/append.rs b/src/app/browser/window/action/append.rs
index c4667777..66d1bc9d 100644
--- a/src/app/browser/window/action/append.rs
+++ b/src/app/browser/window/action/append.rs
@@ -40,6 +40,12 @@ pub struct Append {
     pub simple_action: SimpleAction,
 }
 
+impl Default for Append {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Append {
     // Constructors
 
diff --git a/src/app/browser/window/action/bookmark.rs b/src/app/browser/window/action/bookmark.rs
index 30063230..f7eea930 100644
--- a/src/app/browser/window/action/bookmark.rs
+++ b/src/app/browser/window/action/bookmark.rs
@@ -14,6 +14,12 @@ pub struct Bookmark {
     pub simple_action: SimpleAction,
 }
 
+impl Default for Bookmark {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Bookmark {
     // Constructors
 
diff --git a/src/app/browser/window/action/close.rs b/src/app/browser/window/action/close.rs
index 17119780..93091f22 100644
--- a/src/app/browser/window/action/close.rs
+++ b/src/app/browser/window/action/close.rs
@@ -14,6 +14,12 @@ pub struct Close {
     pub simple_action: SimpleAction,
 }
 
+impl Default for Close {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Close {
     // Constructors
 
diff --git a/src/app/browser/window/action/close_all.rs b/src/app/browser/window/action/close_all.rs
index 382de3ad..54893739 100644
--- a/src/app/browser/window/action/close_all.rs
+++ b/src/app/browser/window/action/close_all.rs
@@ -14,6 +14,12 @@ pub struct CloseAll {
     pub simple_action: SimpleAction,
 }
 
+impl Default for CloseAll {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl CloseAll {
     // Constructors
 
diff --git a/src/app/browser/window/action/find.rs b/src/app/browser/window/action/find.rs
index 7f9e7ec7..86adbcac 100644
--- a/src/app/browser/window/action/find.rs
+++ b/src/app/browser/window/action/find.rs
@@ -14,6 +14,12 @@ pub struct Find {
     pub simple_action: SimpleAction,
 }
 
+impl Default for Find {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Find {
     // Constructors
 
diff --git a/src/app/browser/window/action/history_back.rs b/src/app/browser/window/action/history_back.rs
index 5e1e3a18..b8300a0f 100644
--- a/src/app/browser/window/action/history_back.rs
+++ b/src/app/browser/window/action/history_back.rs
@@ -14,6 +14,12 @@ pub struct HistoryBack {
     pub simple_action: SimpleAction,
 }
 
+impl Default for HistoryBack {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl HistoryBack {
     // Constructors
 
diff --git a/src/app/browser/window/action/history_forward.rs b/src/app/browser/window/action/history_forward.rs
index d36a2a17..2117d64d 100644
--- a/src/app/browser/window/action/history_forward.rs
+++ b/src/app/browser/window/action/history_forward.rs
@@ -14,6 +14,12 @@ pub struct HistoryForward {
     pub simple_action: SimpleAction,
 }
 
+impl Default for HistoryForward {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl HistoryForward {
     // Constructors
 
diff --git a/src/app/browser/window/action/home.rs b/src/app/browser/window/action/home.rs
index e1780520..1647e08c 100644
--- a/src/app/browser/window/action/home.rs
+++ b/src/app/browser/window/action/home.rs
@@ -14,6 +14,12 @@ pub struct Home {
     pub simple_action: SimpleAction,
 }
 
+impl Default for Home {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Home {
     // Constructors
 
diff --git a/src/app/browser/window/action/open.rs b/src/app/browser/window/action/open.rs
index f10d0129..99805dee 100644
--- a/src/app/browser/window/action/open.rs
+++ b/src/app/browser/window/action/open.rs
@@ -11,6 +11,12 @@ pub struct Open {
     pub simple_action: SimpleAction,
 }
 
+impl Default for Open {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Open {
     // Constructors
 
diff --git a/src/app/browser/window/action/pin.rs b/src/app/browser/window/action/pin.rs
index e7cb71c9..ac4e7c4c 100644
--- a/src/app/browser/window/action/pin.rs
+++ b/src/app/browser/window/action/pin.rs
@@ -14,6 +14,12 @@ pub struct Pin {
     pub simple_action: SimpleAction,
 }
 
+impl Default for Pin {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Pin {
     // Constructors
 
diff --git a/src/app/browser/window/action/reload.rs b/src/app/browser/window/action/reload.rs
index 6ffcb5f5..222c1871 100644
--- a/src/app/browser/window/action/reload.rs
+++ b/src/app/browser/window/action/reload.rs
@@ -14,6 +14,12 @@ pub struct Reload {
     pub simple_action: SimpleAction,
 }
 
+impl Default for Reload {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Reload {
     // Constructors
 
diff --git a/src/app/browser/window/action/save_as.rs b/src/app/browser/window/action/save_as.rs
index 15e27500..d4fd6cbf 100644
--- a/src/app/browser/window/action/save_as.rs
+++ b/src/app/browser/window/action/save_as.rs
@@ -14,6 +14,12 @@ pub struct SaveAs {
     pub simple_action: SimpleAction,
 }
 
+impl Default for SaveAs {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl SaveAs {
     // Constructors
 
diff --git a/src/app/browser/window/action/source.rs b/src/app/browser/window/action/source.rs
index f6b4c9c8..bd5cacc5 100644
--- a/src/app/browser/window/action/source.rs
+++ b/src/app/browser/window/action/source.rs
@@ -14,6 +14,12 @@ pub struct Source {
     pub simple_action: SimpleAction,
 }
 
+impl Default for Source {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Source {
     // Constructors
 
diff --git a/src/app/browser/window/header/bar/control.rs b/src/app/browser/window/header/bar/control.rs
index c1abf399..05848ac8 100644
--- a/src/app/browser/window/header/bar/control.rs
+++ b/src/app/browser/window/header/bar/control.rs
@@ -6,6 +6,12 @@ pub struct Control {
     pub window_controls: WindowControls,
 }
 
+impl Default for Control {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Control {
     // Construct
     pub fn new() -> Self {
diff --git a/src/app/browser/window/tab/item/action.rs b/src/app/browser/window/tab/item/action.rs
index f1c39d50..16ad917c 100644
--- a/src/app/browser/window/tab/item/action.rs
+++ b/src/app/browser/window/tab/item/action.rs
@@ -12,6 +12,12 @@ pub struct Action {
     pub load: Rc<Load>,
 }
 
+impl Default for Action {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Action {
     // Constructors
 
diff --git a/src/app/browser/window/tab/item/action/ident.rs b/src/app/browser/window/tab/item/action/ident.rs
index dfb50c3a..c44d0763 100644
--- a/src/app/browser/window/tab/item/action/ident.rs
+++ b/src/app/browser/window/tab/item/action/ident.rs
@@ -5,6 +5,12 @@ pub struct Ident {
     pub simple_action: SimpleAction,
 }
 
+impl Default for Ident {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Ident {
     // Constructors
 
diff --git a/src/app/browser/window/tab/item/action/load.rs b/src/app/browser/window/tab/item/action/load.rs
index f680738e..88e83f91 100644
--- a/src/app/browser/window/tab/item/action/load.rs
+++ b/src/app/browser/window/tab/item/action/load.rs
@@ -9,6 +9,12 @@ pub struct Load {
     pub simple_action: SimpleAction,
 }
 
+impl Default for Load {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Load {
     // Constructors
 
diff --git a/src/app/browser/window/tab/item/identity/gemini/widget/action.rs b/src/app/browser/window/tab/item/identity/gemini/widget/action.rs
index 09d06c30..569a943b 100644
--- a/src/app/browser/window/tab/item/identity/gemini/widget/action.rs
+++ b/src/app/browser/window/tab/item/identity/gemini/widget/action.rs
@@ -8,6 +8,12 @@ pub struct Action {
     pub update: Rc<Update>,
 }
 
+impl Default for Action {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Action {
     // Constructors
 
diff --git a/src/app/browser/window/tab/item/identity/gemini/widget/action/update.rs b/src/app/browser/window/tab/item/identity/gemini/widget/action/update.rs
index d0ad0355..14236856 100644
--- a/src/app/browser/window/tab/item/identity/gemini/widget/action/update.rs
+++ b/src/app/browser/window/tab/item/identity/gemini/widget/action/update.rs
@@ -5,6 +5,12 @@ pub struct Update {
     pub gobject: SimpleAction,
 }
 
+impl Default for Update {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Update {
     // Constructors
 
diff --git a/src/app/browser/window/tab/item/identity/unsupported.rs b/src/app/browser/window/tab/item/identity/unsupported.rs
index 0becc6a2..c3ab3a4a 100644
--- a/src/app/browser/window/tab/item/identity/unsupported.rs
+++ b/src/app/browser/window/tab/item/identity/unsupported.rs
@@ -8,6 +8,12 @@ pub struct Unsupported {
     widget: Rc<Widget>,
 }
 
+impl Default for Unsupported {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Unsupported {
     // Construct
 
diff --git a/src/app/browser/window/tab/item/identity/unsupported/widget.rs b/src/app/browser/window/tab/item/identity/unsupported/widget.rs
index 14b80885..a4df74b9 100644
--- a/src/app/browser/window/tab/item/identity/unsupported/widget.rs
+++ b/src/app/browser/window/tab/item/identity/unsupported/widget.rs
@@ -12,6 +12,12 @@ pub struct Widget {
     gobject: AlertDialog,
 }
 
+impl Default for Widget {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Widget {
     // Constructors
 
diff --git a/src/app/browser/window/tab/item/page/client.rs b/src/app/browser/window/tab/item/page/client.rs
index 0c6de673..1ed255a3 100644
--- a/src/app/browser/window/tab/item/page/client.rs
+++ b/src/app/browser/window/tab/item/page/client.rs
@@ -15,6 +15,12 @@ pub struct Client {
     // other clients..
 }
 
+impl Default for Client {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Client {
     // Constructors
 
diff --git a/src/app/browser/window/tab/item/page/content/status/download/action.rs b/src/app/browser/window/tab/item/page/content/status/download/action.rs
index efafdd39..b54affa1 100644
--- a/src/app/browser/window/tab/item/page/content/status/download/action.rs
+++ b/src/app/browser/window/tab/item/page/content/status/download/action.rs
@@ -15,6 +15,12 @@ pub struct Action {
     pub update: Rc<Update>,
 }
 
+impl Default for Action {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Action {
     // Constructors
 
diff --git a/src/app/browser/window/tab/item/page/content/status/download/action/cancel.rs b/src/app/browser/window/tab/item/page/content/status/download/action/cancel.rs
index d6667f98..4a0336af 100644
--- a/src/app/browser/window/tab/item/page/content/status/download/action/cancel.rs
+++ b/src/app/browser/window/tab/item/page/content/status/download/action/cancel.rs
@@ -11,6 +11,12 @@ pub struct Cancel {
     pub action: SimpleAction,
 }
 
+impl Default for Cancel {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Cancel {
     // Constructors
 
diff --git a/src/app/browser/window/tab/item/page/content/status/download/action/complete.rs b/src/app/browser/window/tab/item/page/content/status/download/action/complete.rs
index 84fde709..775c2f5a 100644
--- a/src/app/browser/window/tab/item/page/content/status/download/action/complete.rs
+++ b/src/app/browser/window/tab/item/page/content/status/download/action/complete.rs
@@ -11,6 +11,12 @@ pub struct Complete {
     pub action: SimpleAction,
 }
 
+impl Default for Complete {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Complete {
     // Constructors
 
diff --git a/src/app/browser/window/tab/item/page/content/status/download/action/update.rs b/src/app/browser/window/tab/item/page/content/status/download/action/update.rs
index 6995fe0f..cf6d1840 100644
--- a/src/app/browser/window/tab/item/page/content/status/download/action/update.rs
+++ b/src/app/browser/window/tab/item/page/content/status/download/action/update.rs
@@ -11,6 +11,12 @@ pub struct Update {
     pub action: SimpleAction,
 }
 
+impl Default for Update {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Update {
     // Constructors
 
diff --git a/src/app/browser/window/tab/item/page/content/status/download/cancel.rs b/src/app/browser/window/tab/item/page/content/status/download/cancel.rs
index 5f8768dd..4f792d3c 100644
--- a/src/app/browser/window/tab/item/page/content/status/download/cancel.rs
+++ b/src/app/browser/window/tab/item/page/content/status/download/cancel.rs
@@ -11,6 +11,12 @@ pub struct Cancel {
     pub button: Button,
 }
 
+impl Default for Cancel {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Cancel {
     // Constructors
 
diff --git a/src/app/browser/window/tab/item/page/content/status/download/open.rs b/src/app/browser/window/tab/item/page/content/status/download/open.rs
index d2529289..224d7cf9 100644
--- a/src/app/browser/window/tab/item/page/content/status/download/open.rs
+++ b/src/app/browser/window/tab/item/page/content/status/download/open.rs
@@ -11,6 +11,12 @@ pub struct Open {
     pub button: Button,
 }
 
+impl Default for Open {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Open {
     // Constructors
 
diff --git a/src/app/browser/window/tab/item/page/content/status/download/progress.rs b/src/app/browser/window/tab/item/page/content/status/download/progress.rs
index 2e862fb3..3e3564de 100644
--- a/src/app/browser/window/tab/item/page/content/status/download/progress.rs
+++ b/src/app/browser/window/tab/item/page/content/status/download/progress.rs
@@ -9,6 +9,12 @@ pub struct Progress {
     pub spinner: Spinner,
 }
 
+impl Default for Progress {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Progress {
     // Constructors
 
diff --git a/src/app/browser/window/tab/item/page/content/status/download/status.rs b/src/app/browser/window/tab/item/page/content/status/download/status.rs
index 68489c78..f95ff233 100644
--- a/src/app/browser/window/tab/item/page/content/status/download/status.rs
+++ b/src/app/browser/window/tab/item/page/content/status/download/status.rs
@@ -14,6 +14,12 @@ pub struct Status {
     pub label: Label,
 }
 
+impl Default for Status {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Status {
     // Constructors
 
diff --git a/src/app/browser/window/tab/item/page/content/text/gemini/reader/ansi/tag.rs b/src/app/browser/window/tab/item/page/content/text/gemini/reader/ansi/tag.rs
index fe726ce5..1162a635 100644
--- a/src/app/browser/window/tab/item/page/content/text/gemini/reader/ansi/tag.rs
+++ b/src/app/browser/window/tab/item/page/content/text/gemini/reader/ansi/tag.rs
@@ -6,6 +6,12 @@ pub struct Tag {
     pub text_tag: TextTag,
 }
 
+impl Default for Tag {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Tag {
     // Constructors
 
diff --git a/src/app/browser/window/tab/item/page/content/text/gemini/reader/syntax.rs b/src/app/browser/window/tab/item/page/content/text/gemini/reader/syntax.rs
index 80dcbf8f..69fcca16 100644
--- a/src/app/browser/window/tab/item/page/content/text/gemini/reader/syntax.rs
+++ b/src/app/browser/window/tab/item/page/content/text/gemini/reader/syntax.rs
@@ -35,6 +35,12 @@ pub struct Syntax {
     theme_set: ThemeSet,
 }
 
+impl Default for Syntax {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Syntax {
     // Constructors
 
diff --git a/src/app/browser/window/tab/item/page/content/text/gemini/reader/syntax/tag.rs b/src/app/browser/window/tab/item/page/content/text/gemini/reader/syntax/tag.rs
index 415f722a..8b52843b 100644
--- a/src/app/browser/window/tab/item/page/content/text/gemini/reader/syntax/tag.rs
+++ b/src/app/browser/window/tab/item/page/content/text/gemini/reader/syntax/tag.rs
@@ -6,6 +6,12 @@ pub struct Tag {
     pub text_tag: TextTag,
 }
 
+impl Default for Tag {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Tag {
     // Constructors
 
diff --git a/src/app/browser/window/tab/item/page/content/text/gemini/reader/tag.rs b/src/app/browser/window/tab/item/page/content/text/gemini/reader/tag.rs
index ccf50864..d3ae4f5b 100644
--- a/src/app/browser/window/tab/item/page/content/text/gemini/reader/tag.rs
+++ b/src/app/browser/window/tab/item/page/content/text/gemini/reader/tag.rs
@@ -20,6 +20,12 @@ pub struct Tag {
     pub plain: TextTag,
 }
 
+impl Default for Tag {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Tag {
     // Construct
     pub fn new() -> Self {
diff --git a/src/app/browser/window/tab/item/page/content/text/plain/reader.rs b/src/app/browser/window/tab/item/page/content/text/plain/reader.rs
index 572aa23b..3153f39f 100644
--- a/src/app/browser/window/tab/item/page/content/text/plain/reader.rs
+++ b/src/app/browser/window/tab/item/page/content/text/plain/reader.rs
@@ -4,6 +4,12 @@ pub struct Reader {
     widget: Label,
 }
 
+impl Default for Reader {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Reader {
     // Construct
     pub fn new() -> Self {
diff --git a/src/app/browser/window/tab/item/page/input.rs b/src/app/browser/window/tab/item/page/input.rs
index be68e120..2241c57a 100644
--- a/src/app/browser/window/tab/item/page/input.rs
+++ b/src/app/browser/window/tab/item/page/input.rs
@@ -14,6 +14,12 @@ pub struct Input {
     pub widget: Rc<Widget>,
 }
 
+impl Default for Input {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Input {
     // Construct
     pub fn new() -> Self {
diff --git a/src/app/browser/window/tab/item/page/input/response/control/counter.rs b/src/app/browser/window/tab/item/page/input/response/control/counter.rs
index 5e417bd1..c3e8e956 100644
--- a/src/app/browser/window/tab/item/page/input/response/control/counter.rs
+++ b/src/app/browser/window/tab/item/page/input/response/control/counter.rs
@@ -8,6 +8,12 @@ pub struct Counter {
     pub widget: Rc<Widget>,
 }
 
+impl Default for Counter {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Counter {
     // Construct
     pub fn new() -> Self {
diff --git a/src/app/browser/window/tab/item/page/input/response/control/counter/widget.rs b/src/app/browser/window/tab/item/page/input/response/control/counter/widget.rs
index 6b0cec68..84766f59 100644
--- a/src/app/browser/window/tab/item/page/input/response/control/counter/widget.rs
+++ b/src/app/browser/window/tab/item/page/input/response/control/counter/widget.rs
@@ -4,6 +4,12 @@ pub struct Widget {
     pub label: Label,
 }
 
+impl Default for Widget {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Widget {
     // Construct
     pub fn new() -> Self {
diff --git a/src/app/browser/window/tab/item/page/input/widget.rs b/src/app/browser/window/tab/item/page/input/widget.rs
index 0032d7e2..6c80fa3f 100644
--- a/src/app/browser/window/tab/item/page/input/widget.rs
+++ b/src/app/browser/window/tab/item/page/input/widget.rs
@@ -7,6 +7,12 @@ pub struct Widget {
     pub clamp: Clamp,
 }
 
+impl Default for Widget {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Widget {
     // Construct
     pub fn new() -> Self {
diff --git a/src/app/browser/window/tab/item/page/search.rs b/src/app/browser/window/tab/item/page/search.rs
index 63292ef5..a9b50936 100644
--- a/src/app/browser/window/tab/item/page/search.rs
+++ b/src/app/browser/window/tab/item/page/search.rs
@@ -20,6 +20,12 @@ pub struct Search {
     pub g_box: Box,
 }
 
+impl Default for Search {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Search {
     // Constructors
 
diff --git a/src/app/browser/window/tab/item/page/search/form/input.rs b/src/app/browser/window/tab/item/page/search/form/input.rs
index db5e782a..305a9342 100644
--- a/src/app/browser/window/tab/item/page/search/form/input.rs
+++ b/src/app/browser/window/tab/item/page/search/form/input.rs
@@ -10,6 +10,12 @@ pub struct Input {
     pub entry: Entry,
 }
 
+impl Default for Input {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Input {
     // Constructors
 
diff --git a/src/app/browser/window/tab/item/page/search/form/navigation.rs b/src/app/browser/window/tab/item/page/search/form/navigation.rs
index c52d7c06..5a9b1256 100644
--- a/src/app/browser/window/tab/item/page/search/form/navigation.rs
+++ b/src/app/browser/window/tab/item/page/search/form/navigation.rs
@@ -22,6 +22,12 @@ pub struct Navigation {
     model: RefCell<Model<(TextIter, TextIter)>>,
 }
 
+impl Default for Navigation {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Navigation {
     // Constructors
 
diff --git a/src/app/browser/window/tab/item/page/search/form/navigation/back.rs b/src/app/browser/window/tab/item/page/search/form/navigation/back.rs
index 18527cb2..67b48036 100644
--- a/src/app/browser/window/tab/item/page/search/form/navigation/back.rs
+++ b/src/app/browser/window/tab/item/page/search/form/navigation/back.rs
@@ -4,6 +4,12 @@ pub struct Back {
     pub button: Button,
 }
 
+impl Default for Back {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Back {
     // Constructors
 
diff --git a/src/app/browser/window/tab/item/page/search/form/navigation/forward.rs b/src/app/browser/window/tab/item/page/search/form/navigation/forward.rs
index 530a6ee1..3f334c8e 100644
--- a/src/app/browser/window/tab/item/page/search/form/navigation/forward.rs
+++ b/src/app/browser/window/tab/item/page/search/form/navigation/forward.rs
@@ -4,6 +4,12 @@ pub struct Forward {
     pub button: Button,
 }
 
+impl Default for Forward {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Forward {
     // Constructors
 
diff --git a/src/app/browser/window/tab/item/page/search/form/result.rs b/src/app/browser/window/tab/item/page/search/form/result.rs
index 053880e4..0a1053e2 100644
--- a/src/app/browser/window/tab/item/page/search/form/result.rs
+++ b/src/app/browser/window/tab/item/page/search/form/result.rs
@@ -6,6 +6,12 @@ pub struct Result {
     pub label: Label,
 }
 
+impl Default for Result {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Result {
     // Constructors
 
diff --git a/src/app/browser/window/tab/item/page/search/placeholder.rs b/src/app/browser/window/tab/item/page/search/placeholder.rs
index 7f9b62ae..600527d2 100644
--- a/src/app/browser/window/tab/item/page/search/placeholder.rs
+++ b/src/app/browser/window/tab/item/page/search/placeholder.rs
@@ -6,6 +6,12 @@ pub struct Placeholder {
     pub label: Label,
 }
 
+impl Default for Placeholder {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl Placeholder {
     // Constructors