diff --git a/crates/ui-egui/src/dialogs.rs b/crates/ui-egui/src/dialogs.rs
--- a/crates/ui-egui/src/dialogs.rs
+++ b/crates/ui-egui/src/dialogs.rs
@@ -141,10 +141,14 @@ fn about_body(ui: &mut egui::Ui, t: &Tokens) {
     );
 }
 
-/// Escape closes the topmost simple dialog (one without menus of its own), before the canvas's
-/// shortcuts see it (it doesn't deselect), like a system dialog: from one of its fields too. A menu
+/// Dialog keys: handles the global Preferences shortcut (Cmd/Ctrl+,), and Escape closing the
+/// topmost simple dialog (one without menus of its own) before the canvas shortcuts see it. A menu
 /// open over the dialog (Preferences ▸ Interface size) takes the first Escape and closes alone.
 pub fn keys(app: &mut FigApp, ctx: &Context) {
+    if ctx.input_mut(|i| i.consume_key(egui::Modifiers::COMMAND, egui::Key::Comma) || i.consume_key(egui::Modifiers::CTRL, egui::Key::Comma)) {
+        app.ui.preferences = !app.ui.preferences;
+        return;
+    }
     if egui::Popup::is_any_open(ctx) {
         return;
     }
diff --git a/crates/ui-egui/src/home.rs b/crates/ui-egui/src/home.rs
--- a/crates/ui-egui/src/home.rs
+++ b/crates/ui-egui/src/home.rs
@@ -196,6 +196,8 @@ fn dropped(app: &mut FigApp, ctx: &egui::Context) {
     }
 }
 
+/// The sidebar on the left of the home screen: the app icon and wordmark, search,
+/// navigation sections, and preferences at the bottom.
 fn sidebar(app: &mut FigApp, ui: &mut Ui, t: &Tokens, left: Rect) {
     let mut y = left.min.y + 20.0;
     crate::theme::paint_app_icon(ui, Rect::from_min_size(pos2(left.min.x + 12.0, y - 4.0), vec2(32.0, 32.0)));
@@ -228,6 +230,26 @@ fn sidebar(app: &mut FigApp, ui: &mut Ui, t: &Tokens, left: Rect) {
         }
         y += 34.0;
     }
+    let pref_y = (left.max.y - 44.0).max(y + 12.0);
+    if pref_y > y + 12.0 {
+        ui.painter().line_segment([pos2(left.min.x + 12.0, pref_y - 6.0), pos2(left.max.x - 12.0, pref_y - 6.0)], Stroke::new(1.0, t.border));
+    }
+    let r = Rect::from_min_size(pos2(left.min.x + 8.0, pref_y), vec2(SIDEBAR - 16.0, 32.0));
+    let mut resp = ui.interact(r, ui.id().with("home_preferences"), Sense::click());
+    let current = app.ui.preferences;
+    a11y::button(&resp, tr("Preferences"));
+    if current || resp.hovered() {
+        ui.painter().rect_filled(r, CornerRadius::same(5), if current { t.selected_row } else { t.hover });
+    }
+    focus_ring(ui, t, r, &resp, 5);
+    icons::paint(ui.painter(), Rect::from_min_size(pos2(r.min.x + 10.0, r.center().y - 8.0), vec2(16.0, 16.0)), Icon::Adjust, t.icon);
+    ui.painter().text(pos2(r.min.x + 36.0, r.center().y), Align2::LEFT_CENTER, tr("Preferences"), regular(12.0), t.text);
+    let key_label = figcraft_engine::keymap::display("Cmd+,", crate::shortcuts::platform());
+    ui.painter().text(pos2(r.max.x - 8.0, r.center().y), Align2::RIGHT_CENTER, &key_label, regular(11.0), t.text_secondary);
+    resp = resp.on_hover_text(format!("{} ({})", tr("Preferences"), key_label));
+    if resp.clicked() {
+        app.ui.preferences = !app.ui.preferences;
+    }
 }
 
 fn file_matches(name: &str, location: &str, query: &str) -> bool {
diff --git a/crates/ui-egui/src/home_tests.rs b/crates/ui-egui/src/home_tests.rs
--- a/crates/ui-egui/src/home_tests.rs
+++ b/crates/ui-egui/src/home_tests.rs
@@ -853,3 +853,34 @@ fn dropping_an_unsupported_file_on_the_home_screen_opens_nothing() {
     assert!(u.app.ui.home);
     assert_eq!(u.app.ui.toast.as_ref().map(|t| t.0.as_str()), Some("Drop a .figcraft, .fig, .json, .svg or image file."));
 }
+
+/// The Preferences dialog can be opened and toggled from the home screen via
+/// the `Cmd/Ctrl + ,` shortcut as well as by clicking Preferences in the sidebar.
+#[test]
+fn home_screen_preferences_shortcut_and_sidebar_access() {
+    let mut u = first_run();
+    u.app.ui.home = true;
+    u.frame(vec![]);
+    assert!(!u.app.ui.preferences);
+
+    // Ctrl/Cmd + Comma opens Preferences on the Home screen.
+    u.frame(vec![
+        Event::Key { key: Key::Comma, physical_key: None, pressed: true, repeat: false, modifiers: Modifiers::COMMAND },
+        Event::Key { key: Key::Comma, physical_key: None, pressed: false, repeat: false, modifiers: Modifiers::COMMAND },
+    ]);
+    assert!(u.app.ui.preferences, "Ctrl/Cmd+, should open Preferences from the Home screen");
+
+    // Escape closes Preferences.
+    press(&mut u, Key::Escape);
+    assert!(!u.app.ui.preferences, "Escape should close Preferences");
+
+    // Clicking Preferences in the sidebar opens Preferences.
+    let s = shapes(&mut u);
+    click(&mut u, text_center(&s, "Preferences"));
+    assert!(u.app.ui.preferences, "Clicking Preferences in sidebar should open Preferences");
+
+    // Clicking it again toggles it closed.
+    let s = shapes(&mut u);
+    click(&mut u, text_center(&s, "Preferences"));
+    assert!(!u.app.ui.preferences, "Clicking Preferences in sidebar again should close it");
+}