feat: add configurable panel background image

crates/nip29_ui/src/lib.rs

@@ -5,7 +5,7 @@ use chat_ui::text::rendered_text;
 use gpui::prelude::FluentBuilder;
 use gpui::{
     Action, AnyElement, App, AppContext, Context, Entity, EventEmitter, FocusHandle, Focusable,
-    FollowMode, IntoElement, ListAlignment, ListScrollEvent, ListState, ParentElement,
+    FollowMode, ImageSource, IntoElement, ListAlignment, ListScrollEvent, ListState, ParentElement,
     PathPromptOptions, Render, SharedString, Styled, Subscription, Task, WeakEntity, Window, div,
     list, px,
 };
@@ -1172,6 +1172,10 @@ impl Panel for GroupPanel {
         Vec::new()
     }
 
+    fn background(&self, cx: &App) -> Option<ImageSource> {
+        AppSettings::panel_background_source(cx)
+    }
+
     fn set_active(&self, active: bool, window: &mut Window, cx: &mut App) {
         let Some(group) = self.group.upgrade() else {
             return;