add brand theme

desktop/src/main.rs

@@ -3,7 +3,7 @@ use std::sync::Arc;
 use assets::Assets;
 use dock::TAB_BAR_HEIGHT;
 use gpui::*;
-use gpui_component::theme;
+use gpui_component::{Theme, ThemeRegistry, theme};
 use gpui_platform::application;
 
 fn main() {
@@ -27,6 +27,34 @@ fn main() {
             // Initialize theme
             theme::init(cx);
 
+            // Register the built-in "Signed" theme (light + dark variants)
+            // and make it the active theme, following the system appearance.
+            let registry = ThemeRegistry::global_mut(cx);
+            for (name, content) in Assets.themes() {
+                if let Err(err) = registry.load_themes_from_str(&content) {
+                    tracing::error!("Failed to load theme {name}: {err}");
+                }
+            }
+
+            let light_theme = registry.themes().get("Signed Light").cloned();
+            let dark_theme = registry.themes().get("Signed Dark").cloned();
+            let theme = Theme::global_mut(cx);
+            theme.radius = px(2.);
+            theme.radius_lg = px(6.);
+            theme.focus_ring = false;
+            theme.shadow = false;
+
+            if let Some(light) = light_theme {
+                theme.light_theme = light;
+            }
+
+            if let Some(dark) = dark_theme {
+                theme.dark_theme = dark;
+            }
+
+            // Sync the theme with the system appearance
+            Theme::sync_system_appearance(None, cx);
+
             // Install the shared image cache so avatars can be freed when
             // their views close, instead of staying in memory forever.
             workspace::image_cache::init(cx);