diff --git a/hcie-iced-app/crates/hcie-iced-gui/src/canvas/shader_canvas.rs b/hcie-iced-app/crates/hcie-iced-gui/src/canvas/shader_canvas.rs
index 80383ec..495495f 100644
--- a/hcie-iced-app/crates/hcie-iced-gui/src/canvas/shader_canvas.rs
+++ b/hcie-iced-app/crates/hcie-iced-gui/src/canvas/shader_canvas.rs
@@ -856,11 +856,13 @@ impl shader::Primitive for CanvasShaderPrimitive {
             clip_bounds.width,
             clip_bounds.height,
         );
+        // clip_bounds is already in physical pixels from iced — use it for the
+        // wgpu viewport which also expects physical pixel coordinates.
         render_pass.set_viewport(
-            self.bounds.x,
-            self.bounds.y,
-            self.bounds.width,
-            self.bounds.height,
+            clip_bounds.x as f32,
+            clip_bounds.y as f32,
+            clip_bounds.width as f32,
+            clip_bounds.height as f32,
             0.0,
             1.0,
         );
diff --git a/hcie-iced-app/crates/hcie-iced-gui/src/panels/title_bar.rs b/hcie-iced-app/crates/hcie-iced-gui/src/panels/title_bar.rs
index f2af9f0..b8ea08b 100644
--- a/hcie-iced-app/crates/hcie-iced-gui/src/panels/title_bar.rs
+++ b/hcie-iced-app/crates/hcie-iced-gui/src/panels/title_bar.rs
@@ -178,7 +178,8 @@ pub fn view<'a>(
 
     let minimize_btn = button(text("─").size(12))
         .on_press(Message::WindowMinimize)
-        .padding([2, 8])
+        .padding([4, 10])
+        .height(MENU_BAR_HEIGHT)
         .style(
             move |_theme: &iced::Theme, status: iced::widget::button::Status| match status {
                 iced::widget::button::Status::Hovered => iced::widget::button::Style {
@@ -189,7 +190,7 @@ pub fn view<'a>(
                 },
                 _ => iced::widget::button::Style {
                     background: Some(iced::Background::Color(iced::Color::from_rgba(
-                        0.0, 0.0, 0.0, 0.0,
+                        0.0, 0.0, 0.0, 0.06,
                     ))),
                     text_color: c.text_secondary,
                     border: iced::Border::default(),
@@ -200,7 +201,8 @@ pub fn view<'a>(
 
     let maximize_btn = button(text("□").size(12))
         .on_press(Message::WindowMaximize)
-        .padding([2, 8])
+        .padding([4, 10])
+        .height(MENU_BAR_HEIGHT)
         .style(
             move |_theme: &iced::Theme, status: iced::widget::button::Status| match status {
                 iced::widget::button::Status::Hovered => iced::widget::button::Style {
@@ -211,7 +213,7 @@ pub fn view<'a>(
                 },
                 _ => iced::widget::button::Style {
                     background: Some(iced::Background::Color(iced::Color::from_rgba(
-                        0.0, 0.0, 0.0, 0.0,
+                        0.0, 0.0, 0.0, 0.06,
                     ))),
                     text_color: c.text_secondary,
                     border: iced::Border::default(),
@@ -222,7 +224,8 @@ pub fn view<'a>(
 
     let close_btn = button(text("×").size(13))
         .on_press(Message::WindowClose)
-        .padding([2, 10])
+        .padding([4, 10])
+        .height(MENU_BAR_HEIGHT)
         .style(
             move |_theme: &iced::Theme, status: iced::widget::button::Status| match status {
                 iced::widget::button::Status::Hovered => iced::widget::button::Style {
@@ -233,7 +236,7 @@ pub fn view<'a>(
                 },
                 _ => iced::widget::button::Style {
                     background: Some(iced::Background::Color(iced::Color::from_rgba(
-                        0.0, 0.0, 0.0, 0.0,
+                        0.0, 0.0, 0.0, 0.06,
                     ))),
                     text_color: c.text_secondary,
                     border: iced::Border::default(),