use theme border color for dialog cards

crates/settings/src/lib.rs

@@ -332,8 +332,8 @@ mod tests {
     }
 
     #[test]
-    fn missing_appearance_mode_falls_back_to_system() {
+    fn missing_appearance_mode_falls_back_to_dark() {
         let settings = json_with("").unwrap();
-        assert_eq!(settings.appearance_mode, AppearanceMode::System);
+        assert_eq!(settings.appearance_mode, AppearanceMode::Dark);
     }
 }

crates/theme/src/appearance.rs

@@ -12,11 +12,12 @@ use crate::{Theme, ThemeMode};
 /// it wherever their settings live; this crate never touches disk.
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Default, Serialize, Deserialize)]
 pub enum AppearanceMode {
-    /// Follow the OS. The default — matches every other native app on the
-    /// machine, including when the OS is set to switch at sunset.
-    #[default]
+    /// Follow the OS — matches every other native app on the machine,
+    /// including when the OS is set to switch at sunset.
     System,
     Light,
+    /// Paint dark regardless of the OS.
+    #[default]
     Dark,
 }
 
@@ -62,7 +63,7 @@ pub fn init(mode: AppearanceMode, cx: &mut App) {
     Theme::change(resolve(mode, system), None, cx);
 }
 
-/// The mode currently in effect (defaults to `System` before [`init`]).
+/// The mode currently in effect (defaults to `Dark` before [`init`]).
 pub fn mode(cx: &App) -> AppearanceMode {
     cx.try_global::<AppearanceState>()
         .map(|state| state.mode)

crates/theme/src/lib.rs

@@ -66,7 +66,7 @@ pub const TABBAR_HEIGHT: Pixels = px(36.0);
 pub const SIDEBAR_WIDTH: Pixels = px(240.);
 
 pub fn init(cx: &mut App) {
-    appearance::init(AppearanceMode::System, cx);
+    appearance::init(AppearanceMode::default(), cx);
     Theme::sync_scrollbar_appearance(cx);
 }
 

crates/theme/src/theme.rs

@@ -5,8 +5,8 @@ use serde::{Deserialize, Serialize};
 #[derive(Debug, Clone, Copy, Default, PartialEq, PartialOrd, Eq, Hash, Deserialize, Serialize)]
 pub enum ThemeMode {
     #[default]
-    Light,
     Dark,
+    Light,
 }
 
 impl ThemeMode {

crates/ui/src/dialog.rs

@@ -6,7 +6,7 @@ use gpui::{
     Pixels, RenderOnce, SharedString, StyleRefinement, Styled, Window, div, px, transparent_black,
 };
 use gpui_base::{DialogBackdrop, DialogPopup, DialogTitle};
-use theme::{ActiveTheme, SCRIM_ALPHA_DARK, hairline, scrim, surface_radius, surface_shadows};
+use theme::{ActiveTheme, SCRIM_ALPHA_DARK, scrim, surface_radius, surface_shadows};
 
 use crate::button::{Button, ButtonCustomVariant, ButtonVariant, ButtonVariants as _};
 use crate::motion::DIALOG_IN;
@@ -276,18 +276,16 @@ impl RenderOnce for Dialog {
             .when(self.overlay_visible, |this| {
                 this.bg(scrim(SCRIM_ALPHA_DARK))
             })
-            .with_animation(
-                "fade-in",
-                DIALOG_IN.animation(),
-                move |this, delta| this.opacity(delta),
-            );
+            .with_animation("fade-in", DIALOG_IN.animation(), move |this, delta| {
+                this.opacity(delta)
+            });
 
         let card = DialogPopup::new()
             .flex()
             .flex_col()
             .bg(cx.theme().surface_dialog)
             .border_1()
-            .border_color(hairline(0.4))
+            .border_color(cx.theme().border)
             .rounded(px(surface_radius()))
             .when(cx.theme().shadow, |this| this.shadow(surface_shadows()))
             .min_h_24()
@@ -370,18 +368,14 @@ impl RenderOnce for Dialog {
                         .children(footer(render_ok, render_cancel, window, cx)),
                 )
             })
-            .with_animation(
-                "slide-down",
-                DIALOG_IN.animation(),
-                move |this, delta| {
-                    let y_offset = px(2.) * (delta - 1.);
-                    let mut shadow = surface_shadows();
-                    for shadow in &mut shadow {
-                        shadow.color.a *= delta;
-                    }
-                    this.top(y_offset).shadow(shadow)
-                },
-            );
+            .with_animation("slide-down", DIALOG_IN.animation(), move |this, delta| {
+                let y_offset = px(2.) * (delta - 1.);
+                let mut shadow = surface_shadows();
+                for shadow in &mut shadow {
+                    shadow.color.a *= delta;
+                }
+                this.top(y_offset).shadow(shadow)
+            });
 
         gpui_base::Dialog::new(cx)
             .layer(layer_ix, is_topmost)

crates/ui/src/nav.rs

@@ -109,7 +109,7 @@ impl RenderOnce for Nav {
             cx.theme().text_muted
         };
 
-        v_flex().h_10().w_full().items_center().child(
+        v_flex().h_10().w_full().justify_center().child(
             h_flex()
                 .id(self.id)
                 .h_9()