diff --git a/Cargo.lock b/Cargo.lock
index d07ff4b..9b2ede5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -792,7 +792,7 @@ dependencies = [
 [[package]]
 name = "cosmic-config"
 version = "0.1.0"
-source = "git+https://github.com/pop-os/libcosmic?branch=menu#ef6c21b647480e8bfea80e3dc628079de90f51c3"
+source = "git+https://github.com/pop-os/libcosmic?branch=menu#a9818966c368c2f1f8e7b401f172a12770a66ff5"
 dependencies = [
  "atomicwrites",
  "cosmic-config-derive",
@@ -806,7 +806,7 @@ dependencies = [
 [[package]]
 name = "cosmic-config-derive"
 version = "0.1.0"
-source = "git+https://github.com/pop-os/libcosmic?branch=menu#ef6c21b647480e8bfea80e3dc628079de90f51c3"
+source = "git+https://github.com/pop-os/libcosmic?branch=menu#a9818966c368c2f1f8e7b401f172a12770a66ff5"
 dependencies = [
  "quote",
  "syn 1.0.109",
@@ -873,7 +873,7 @@ dependencies = [
 [[package]]
 name = "cosmic-theme"
 version = "0.1.0"
-source = "git+https://github.com/pop-os/libcosmic?branch=menu#ef6c21b647480e8bfea80e3dc628079de90f51c3"
+source = "git+https://github.com/pop-os/libcosmic?branch=menu#a9818966c368c2f1f8e7b401f172a12770a66ff5"
 dependencies = [
  "almost",
  "cosmic-config",
@@ -1994,7 +1994,7 @@ dependencies = [
 [[package]]
 name = "iced"
 version = "0.10.0"
-source = "git+https://github.com/pop-os/libcosmic?branch=menu#ef6c21b647480e8bfea80e3dc628079de90f51c3"
+source = "git+https://github.com/pop-os/libcosmic?branch=menu#a9818966c368c2f1f8e7b401f172a12770a66ff5"
 dependencies = [
  "iced_accessibility",
  "iced_core",
@@ -2009,7 +2009,7 @@ dependencies = [
 [[package]]
 name = "iced_accessibility"
 version = "0.1.0"
-source = "git+https://github.com/pop-os/libcosmic?branch=menu#ef6c21b647480e8bfea80e3dc628079de90f51c3"
+source = "git+https://github.com/pop-os/libcosmic?branch=menu#a9818966c368c2f1f8e7b401f172a12770a66ff5"
 dependencies = [
  "accesskit",
  "accesskit_winit",
@@ -2018,12 +2018,13 @@ dependencies = [
 [[package]]
 name = "iced_core"
 version = "0.10.0"
-source = "git+https://github.com/pop-os/libcosmic?branch=menu#ef6c21b647480e8bfea80e3dc628079de90f51c3"
+source = "git+https://github.com/pop-os/libcosmic?branch=menu#a9818966c368c2f1f8e7b401f172a12770a66ff5"
 dependencies = [
  "bitflags 1.3.2",
  "instant",
  "log",
  "palette",
+ "serde",
  "thiserror",
  "twox-hash",
 ]
@@ -2031,7 +2032,7 @@ dependencies = [
 [[package]]
 name = "iced_futures"
 version = "0.7.0"
-source = "git+https://github.com/pop-os/libcosmic?branch=menu#ef6c21b647480e8bfea80e3dc628079de90f51c3"
+source = "git+https://github.com/pop-os/libcosmic?branch=menu#a9818966c368c2f1f8e7b401f172a12770a66ff5"
 dependencies = [
  "futures",
  "iced_core",
@@ -2043,7 +2044,7 @@ dependencies = [
 [[package]]
 name = "iced_graphics"
 version = "0.9.0"
-source = "git+https://github.com/pop-os/libcosmic?branch=menu#ef6c21b647480e8bfea80e3dc628079de90f51c3"
+source = "git+https://github.com/pop-os/libcosmic?branch=menu#a9818966c368c2f1f8e7b401f172a12770a66ff5"
 dependencies = [
  "bitflags 1.3.2",
  "bytemuck",
@@ -2061,7 +2062,7 @@ dependencies = [
 [[package]]
 name = "iced_renderer"
 version = "0.1.0"
-source = "git+https://github.com/pop-os/libcosmic?branch=menu#ef6c21b647480e8bfea80e3dc628079de90f51c3"
+source = "git+https://github.com/pop-os/libcosmic?branch=menu#a9818966c368c2f1f8e7b401f172a12770a66ff5"
 dependencies = [
  "iced_graphics",
  "iced_tiny_skia",
@@ -2074,7 +2075,7 @@ dependencies = [
 [[package]]
 name = "iced_runtime"
 version = "0.1.1"
-source = "git+https://github.com/pop-os/libcosmic?branch=menu#ef6c21b647480e8bfea80e3dc628079de90f51c3"
+source = "git+https://github.com/pop-os/libcosmic?branch=menu#a9818966c368c2f1f8e7b401f172a12770a66ff5"
 dependencies = [
  "iced_core",
  "iced_futures",
@@ -2084,7 +2085,7 @@ dependencies = [
 [[package]]
 name = "iced_style"
 version = "0.9.0"
-source = "git+https://github.com/pop-os/libcosmic?branch=menu#ef6c21b647480e8bfea80e3dc628079de90f51c3"
+source = "git+https://github.com/pop-os/libcosmic?branch=menu#a9818966c368c2f1f8e7b401f172a12770a66ff5"
 dependencies = [
  "iced_core",
  "once_cell",
@@ -2094,7 +2095,7 @@ dependencies = [
 [[package]]
 name = "iced_tiny_skia"
 version = "0.1.0"
-source = "git+https://github.com/pop-os/libcosmic?branch=menu#ef6c21b647480e8bfea80e3dc628079de90f51c3"
+source = "git+https://github.com/pop-os/libcosmic?branch=menu#a9818966c368c2f1f8e7b401f172a12770a66ff5"
 dependencies = [
  "bytemuck",
  "cosmic-text 0.9.0",
@@ -2112,7 +2113,7 @@ dependencies = [
 [[package]]
 name = "iced_wgpu"
 version = "0.11.1"
-source = "git+https://github.com/pop-os/libcosmic?branch=menu#ef6c21b647480e8bfea80e3dc628079de90f51c3"
+source = "git+https://github.com/pop-os/libcosmic?branch=menu#a9818966c368c2f1f8e7b401f172a12770a66ff5"
 dependencies = [
  "bitflags 1.3.2",
  "bytemuck",
@@ -2134,7 +2135,7 @@ dependencies = [
 [[package]]
 name = "iced_widget"
 version = "0.1.3"
-source = "git+https://github.com/pop-os/libcosmic?branch=menu#ef6c21b647480e8bfea80e3dc628079de90f51c3"
+source = "git+https://github.com/pop-os/libcosmic?branch=menu#a9818966c368c2f1f8e7b401f172a12770a66ff5"
 dependencies = [
  "iced_renderer",
  "iced_runtime",
@@ -2148,7 +2149,7 @@ dependencies = [
 [[package]]
 name = "iced_winit"
 version = "0.10.0"
-source = "git+https://github.com/pop-os/libcosmic?branch=menu#ef6c21b647480e8bfea80e3dc628079de90f51c3"
+source = "git+https://github.com/pop-os/libcosmic?branch=menu#a9818966c368c2f1f8e7b401f172a12770a66ff5"
 dependencies = [
  "iced_graphics",
  "iced_runtime",
@@ -2405,7 +2406,7 @@ checksum = "a08173bc88b7955d1b3145aa561539096c421ac8debde8cbc3612ec635fee29b"
 [[package]]
 name = "libcosmic"
 version = "0.1.0"
-source = "git+https://github.com/pop-os/libcosmic?branch=menu#ef6c21b647480e8bfea80e3dc628079de90f51c3"
+source = "git+https://github.com/pop-os/libcosmic?branch=menu#a9818966c368c2f1f8e7b401f172a12770a66ff5"
 dependencies = [
  "apply",
  "cosmic-config",
diff --git a/src/config.rs b/src/config.rs
index c97c075..b89d7be 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -1,12 +1,9 @@
 use cosmic::iced::keyboard::{KeyCode, Modifiers};
+use cosmic_text::Metrics;
 use std::{collections::HashMap, fmt};
 
 use crate::{ContextPage, Message};
 
-const DEFAULT_FONT_SIZE: f32 = 14.0;
-const DEFAULT_SYNTAX_THEME_DARK: &'static str = "base16-eighties.dark";
-const DEFAULT_SYNTAX_THEME_LIGHT: &'static str = "base16-ocean.light";
-
 // Makes key binding definitions simpler
 const CTRL: Modifiers = Modifiers::CTRL;
 const ALT: Modifiers = Modifiers::ALT;
@@ -72,9 +69,9 @@ impl fmt::Display for KeyBind {
     }
 }
 
-#[derive(Clone, Debug)]
+#[derive(Clone, Debug, Eq, PartialEq)]
 pub struct Config {
-    pub font_size: f32,
+    pub font_size: u16,
     pub syntax_theme_dark: String,
     pub syntax_theme_light: String,
     pub vim_bindings: bool,
@@ -86,18 +83,20 @@ impl Config {
     //TODO: load from cosmic-config
     pub fn load() -> Self {
         Self {
-            font_size: DEFAULT_FONT_SIZE,
-            syntax_theme_dark: DEFAULT_SYNTAX_THEME_DARK.to_string(),
-            syntax_theme_light: DEFAULT_SYNTAX_THEME_LIGHT.to_string(),
+            font_size: 14,
+            syntax_theme_dark: "base16-eighties.dark".to_string(),
+            syntax_theme_light: "base16-ocean.light".to_string(),
             vim_bindings: false,
             word_wrap: false,
             keybinds: KeyBind::load(),
         }
     }
 
-    // Calculate line height from font size
-    pub fn line_height(&self) -> f32 {
-        (self.font_size * 1.4).ceil()
+    // Calculate metrics from font size
+    pub fn metrics(&self) -> Metrics {
+        let font_size = self.font_size as f32;
+        let line_height = (font_size * 1.4).ceil();
+        Metrics::new(font_size, line_height)
     }
 
     // Get current syntax theme based on dark mode
diff --git a/src/main.rs b/src/main.rs
index 77c55c8..b08c82a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -66,6 +66,7 @@ pub enum Message {
     Cut,
     Copy,
     DefaultFont(usize),
+    DefaultFontSize(usize),
     KeyBind(KeyBind),
     NewFile,
     NewWindow,
@@ -107,6 +108,8 @@ pub struct App {
     tab_model: segmented_button::SingleSelectModel,
     config: Config,
     font_names: Vec<String>,
+    font_size_names: Vec<String>,
+    font_sizes: Vec<u16>,
     theme_names: Vec<String>,
     context_page: ContextPage,
 }
@@ -235,6 +238,11 @@ impl App {
         }
     }
 
+    fn save_config(&mut self) {
+        //TODO: save config (work lost due to drive failure)
+        self.update_config();
+    }
+
     fn update_nav_bar_active(&mut self) {
         let tab_path_opt = match self.active_tab() {
             Some(tab) => tab.path_opt.clone(),
@@ -346,6 +354,13 @@ impl cosmic::Application for App {
             font_names
         };
 
+        let mut font_size_names = Vec::new();
+        let mut font_sizes = Vec::new();
+        for font_size in 4..=32 {
+            font_size_names.push(format!("{}px", font_size));
+            font_sizes.push(font_size);
+        }
+
         let mut theme_names = Vec::with_capacity(SYNTAX_SYSTEM.theme_set.themes.len());
         for (theme_name, _theme) in SYNTAX_SYSTEM.theme_set.themes.iter() {
             theme_names.push(theme_name.to_string());
@@ -357,6 +372,8 @@ impl cosmic::Application for App {
             tab_model: segmented_button::Model::builder().build(),
             config: Config::load(),
             font_names,
+            font_size_names,
+            font_sizes,
             theme_names,
             context_page: ContextPage::Settings,
         };
@@ -494,6 +511,17 @@ impl cosmic::Application for App {
                     }
                 }
             }
+            Message::DefaultFontSize(index) => {
+                match self.font_sizes.get(index) {
+                    Some(font_size) => {
+                        self.config.font_size = *font_size;
+                        self.save_config();
+                    }
+                    None => {
+                        log::warn!("failed to find font with index {}", index);
+                    }
+                }
+            }
             Message::KeyBind(key_bind) => {
                 for (config_key_bind, config_message) in self.config.keybinds.iter() {
                     if config_key_bind == &key_bind {
@@ -595,7 +623,7 @@ impl cosmic::Application for App {
                     } else {
                         self.config.syntax_theme_light = theme_name.to_string();
                     }
-                    self.update_config();
+                    self.save_config();
                 }
                 None => {
                     log::warn!("failed to find syntax theme with index {}", index);
@@ -643,11 +671,11 @@ impl cosmic::Application for App {
             }
             Message::ToggleWordWrap => {
                 self.config.word_wrap = !self.config.word_wrap;
-                self.update_config();
+                self.save_config();
             }
             Message::VimBindings(vim_bindings) => {
                 self.config.vim_bindings = vim_bindings;
-                self.update_config();
+                self.save_config();
             }
         }
 
@@ -721,6 +749,10 @@ impl cosmic::Application for App {
                         .iter()
                         .position(|font_name| font_name == current_font_name)
                 };
+                let font_size_selected = self
+                    .font_sizes
+                    .iter()
+                    .position(|font_size| font_size == &self.config.font_size);
                 widget::settings::view_column(vec![
                     widget::settings::view_section(fl!("appearance"))
                         .add(widget::settings::item::builder(fl!("theme")).control(
@@ -737,7 +769,9 @@ impl cosmic::Application for App {
                         )
                         .add(
                             widget::settings::item::builder(fl!("default-font-size")).control(
-                                widget::dropdown(&["TODO"], Some(0), |_index| Message::Todo),
+                                widget::dropdown(&self.font_size_names, font_size_selected, |index| {
+                                    Message::DefaultFontSize(index)
+                                }),
                             ),
                         )
                         .into(),
@@ -776,7 +810,7 @@ impl cosmic::Application for App {
 
         match self.active_tab() {
             Some(tab) => {
-                tab_column = tab_column.push(text_box(&tab.editor).padding(8));
+                tab_column = tab_column.push(text_box(&tab.editor, self.config.metrics()).padding(8));
                 let status = match tab.editor.lock().unwrap().mode() {
                     ViMode::Passthrough => {
                         //TODO: status line
diff --git a/src/tab.rs b/src/tab.rs
index 5a1efaa..77a8f12 100644
--- a/src/tab.rs
+++ b/src/tab.rs
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-3.0-only
 
-use cosmic_text::{Attrs, Buffer, Edit, Metrics, SyntaxEditor, ViEditor, Wrap};
+use cosmic_text::{Attrs, Buffer, Edit, SyntaxEditor, ViEditor, Wrap};
 use std::{fs, path::PathBuf, sync::Mutex};
 
 use crate::{fl, Config, FONT_SYSTEM, SYNTAX_SYSTEM};
@@ -19,7 +19,7 @@ impl Tab {
         let editor = SyntaxEditor::new(
             Buffer::new(
                 &mut FONT_SYSTEM.lock().unwrap(),
-                Metrics::new(config.font_size, config.line_height()),
+                config.metrics(),
             ),
             &SYNTAX_SYSTEM,
             config.syntax_theme(cosmic::theme::is_dark()),
diff --git a/src/text_box.rs b/src/text_box.rs
index edfb90a..c47cd7c 100644
--- a/src/text_box.rs
+++ b/src/text_box.rs
@@ -59,13 +59,15 @@ impl StyleSheet for Theme {
 
 pub struct TextBox<'a> {
     editor: &'a Mutex<ViEditor<'static>>,
+    metrics: Metrics,
     padding: Padding,
 }
 
 impl<'a> TextBox<'a> {
-    pub fn new(editor: &'a Mutex<ViEditor<'static>>) -> Self {
+    pub fn new(editor: &'a Mutex<ViEditor<'static>>, metrics: Metrics) -> Self {
         Self {
             editor,
+            metrics,
             padding: Padding::new(0.0),
         }
     }
@@ -76,8 +78,8 @@ impl<'a> TextBox<'a> {
     }
 }
 
-pub fn text_box<'a>(editor: &'a Mutex<ViEditor<'static>>) -> TextBox<'a> {
-    TextBox::new(editor)
+pub fn text_box<'a>(editor: &'a Mutex<ViEditor<'static>>, metrics: Metrics) -> TextBox<'a> {
+    TextBox::new(editor, metrics)
 }
 
 //TODO: improve performance
@@ -264,8 +266,7 @@ where
 
         // Set metrics and size
         editor.buffer_mut().set_metrics_and_size(
-            //TODO: get from config
-            Metrics::new(14.0, 20.0).scale(scale_factor as f32),
+            self.metrics.scale(scale_factor as f32),
             image_w as f32,
             image_h as f32,
         );
@@ -336,6 +337,7 @@ where
                 layout.position() + [self.padding.left as f32, self.padding.top as f32].into(),
                 Size::new(view_w as f32, view_h as f32),
             ),
+            [0.0; 4],
         );
 
         let duration = instant.elapsed();